Harry Potter and the Deathly Hallows: Part 1 and Part 2 served as the final instalments and epic culmination of the beloved movie series. The Deathly Hallows book had so much rich content that it was decided the adaptation would be split into two films.

For several years, this sparked the popular trend of one book being adapted in two or three movies, such as Mockingjay, the Hobbit trilogy, and the final Twilight movies.

Adapting one book into multiple movies was never as well done as in the Deathly Hallows movies, though.

Since the Deathly Hallows movies were anticipated with much excitement and to this day remain deeply loved by fans across the world, a good deal is known about the making of the films.

However, even movies as popular as Deathly Hallows: Part 1 and Deathly Hallows: Part 2 still hold fascinating secrets behind the making of the films, many of which even the most hardcore fans don't know.

Many of these secrets relate to the Gringotts scenes. Some of the other juiciest secrets involve Emma Watson's kissing scenes with Daniel Radcliffe and Rupert Grint, how Newt Scamander's grandson was almost in the movie, the brilliant improvisations Ralph Fiennes performed as Voldemort, and how many of Luna and Xenophilius Lovegood's quirks came to exist.

There are even more intriguing behind-the-scenes details than these, though.

It's time to reveal the 30 Details Behind The Making Of Harry Potter and the Deathly Hallows Part 1 and Part 2.

Both Movies Were Filmed Together

Harry Potter running BTS in The Deathly Hallows

Even though Deathly Hallows: Part 1 released in November of 2010 and Part 2 released in July of 2011, they were basically filmed as one giant movie.

A scene from Part 1 would be filmed one day and a scene from Part 2 would be filmed the next.

The filming was so interlinked that during an interview, Helena Bonham Carter couldn't recall for a moment which movie featured one of her major Bellatrix scenes.

Such interconnected filming of both movies is how the two big blockbuster movies were able to release so closely to one another.

Beyond the release dates, the approach worked well in terms of continuity and consistency. After all, both movies were adapted from one book, which meant that even though the movies were split into parts, they still felt like one cohesive story.

Emma Watson Said Kissing Daniel Radcliffe And Rupert Grint Was "Boring"

Ron and Hermione Kiss in Harry Potter and the Deathly Hallows

Emma Watson performed kissing scenes with both Daniel Radcliffe and Rupert Grint.

Hermione kissed Ron after destroying the Hufflepuff's Cup Horcrux in the Chamber of Secrets in Part 2. She didn't technically kiss Harry in the movies, but the Slytherin's Locket Horcrux did create a vision of them kissing as Ron tried to destroy it.

According to Emma Watson, while the scenes were initially awkward to film, kissing Radcliffe and Grint became pretty boring quickly.

Many fans lost their minds over the kissing scenes, but it didn't take long for it to become just another scene for Watson to film.

Crabbe's Actor Was Arrested And Replaced In Part 2

Vincent Crabbe in Harry Potter and the Chamber of Secrets

Despite being one of Draco Malfoy's chief cronies throughout the series, Vincent Crabbe was noticeably absent in Deathly Hallows: Part 2.

His absence was conspicuous not just because he wasn't with Draco in the Room of Requirement, but also because he was the one who summoned the Fiendfyre that destroyed the Ravenclaw's Diadem Horcrux in the books.

Crabbe did not appear because the actor who played him - Jamie Waylett - committed crimes in real life, some of which led to his arrest and eventually imprisonment.

It was not an arbitrary decision to have Blaise Zabini by Draco's side and to have Gregory Goyle summon the Fiendfyre instead of Crabbe.

The Hug Between Voldemort and Draco Was Improvised

Draco and Voldemort Harry Potter

Fans had a range of feelings when it came to Voldemort hugging Draco Malfoy. Some thought it was unsettling and menacing, while others thought it was awkward and hilarious.

The hug was not in the script. Instead, it was improvised by Voldemort actor Ralph Fiennes.

Like many fans, Tom Felton felt that it was unsettling and menacing, a reaction that he thought was consistent with British audiences. However, many American audience members believed that it was awkward and hilarious.

Draco's uncomfortable reaction is even more authentic than fans initially realized considering that Tom Felton wasn't anticipating the hug.

J.K. Rowling Fought To Keep McGonagall's Fight Scene

Maggie Smith as McGonagall in Harry Potter and the Deathly Hallows

Minerva McGonagall had many moments to shine in Harry Potter and the Deathly Hallows. One of these moments was nearly taken from her in the movie adaptation, however, as it was initially planned for Harry to duel Severus Snape instead of McGonagall during the Battle of Hogwarts.

J.K. Rowling herself fought to keep McGonagall in the fight scene. Thankfully, Rowling got her way as the movie stayed true to the book and Maggie Smith had the chance to faithfully portray McGonagall standing up to Snape as she protected Harry and the students of Hogwarts.

An author tends to know what's best for their characters, just as Rowling knew that McGonagall needed to have this moment.

Rolf Scamander Almost Narrated The Tale Of The Three Brothers

The Tale of the Three Brothers from Harry Potter and the Deathly Hallows Part 2

Rolf Scamander never appeared in the books or movies, but he's related to some major characters in a big way.

He's the grandson of Newt Scamander, the protagonist played by Eddie Redmayne in the Fantastic Beasts movie series.

Rolf also went on to marry fan-favorite Luna Lovegood.

J.K. Rowling almost included Rolf Scamander in Deathly Hallows: Part 1 by having him narrate The Tale of the Three Brothers. Evanna Lynch revealed that Rowling sent her texts saying that he both was and wasn't in the movie.

It's unknown whether Rolf would've narrated it in the flesh or if audiences would've only heard his voice.

Rupert Grint Was Kicked Off The Set For Laughing

Rupert Grint Harry Potter

When filming the scene where Harry and Hermione kissed as part of the vision created by the Slytherin's Locket Horcrux, Rupert Grint was kicked off of the set.

Emma Watson revealed that Grint was kicked off the set because he couldn't stop laughing.

Grint wasn't the only one who was kept away, though, as the filmmakers made it a closed set for the scene.

Since Daniel Radcliffe and Emma Watson were topless and covered in silver paint for the scene, it was awkward enough for the two actors without allowing additional crew and cast members to watch.

Cast Members Were Searched To Ensure That They Hadn't Taken Any Props

Harry Potter Room Requirement Reused Movie Props

Once filming concluded, many of the actors kept props that were important to their characters.

While the movies were still being filmed, though, the cast members were sometimes randomly searched to ensure none of them were taking props home.

It's not that any one individual was suspected of stealing, but just a necessary security protocol given the essential nature of the props while filming such a massive blockbuster movie.

They didn't want anyone who solemnly swore they were up to no good to manage their mischief by extracting a prop from the set.

Ralph Fiennes Constantly Changed Voldemort's Final Speech

During Voldemort's seemingly victorious final speech in the Hogwarts courtyard, Lucius Malfoy actor Jason Isaacs felt that, "in this giant confrontation, Ralph was let loose. And he was utterly terrifying."

Fiennes kept the actors and extras on their toes by constantly changing what he said and who he would turn on.

He could pick on anyone at any moment and it would change between takes.

In the moment where Voldemort thought that he had finally defeated Harry Potter once and for all, Fiennes captured the Dark Lord's maniacal glee, manifesting itself in horrifying and unpredictable fashion.

Director David Yates Refused To Recast Older Actors For The Epilogue

Ron Harry and Hermione 19 Years Later in Harry Potter and the Deathly Hallows Part 2

Director David Yates felt strongly that older actors would not play the roles of Harry, Ron, Hermione, Ginny, and Draco Malfoy in the final scene of Deathly Hallows: Part 2.

Yates felt that there was something truly special about seeing Daniel Radcliffe, Rupert Grint, Emma Watson, Bonnie Wright, and Tom Felton playing the adult versions of their characters, especially considering that they once played them as children in the earlier movies.

It also would've been rather jarring to suddenly see these iconic characters played by different actors at the very end.

While some fans didn't love how they looked as adults, it was definitely the right call to keep the same actors rather than recasting with older ones.

Emma Watson Wanted More Books In Hermione's Room

Emma Watson as Hermione Granger Performs a Spell on Her Parents in Harry Potter

For the first time in the movies, Deathly Hallows: Part 1 showed the Granger household.

The scene opened with Hermione in her bedroom and then showed her wiping her parents' memories as part of her plan to protect them from Voldemort and his Death Eaters.

When initially shown the set design of Hermione's bedroom, Emma Watson felt that there were not enough books.

She told the crew that Hermione should have more books in her bedroom, which is certainly an appropriate choice given that Hermione is such a scholar and voracious reader.

The set design for the movies is incredible, but every once and a while an actor can share an insight like Watson's that makes the set even better and more authentic to the characters.

Daniel Radcliffe had to analyze the other actors for the seven Potter scene

The seven Potters at Privet Drive in the Deathly Hallows

Filming the seven Potter scene was immensely complicated. In addition to playing Harry as usual, Radcliffe also had to play Ron, Hermione, Fred, George, Fleur, and Mundungus who all looked like Harry because of Polyjuice Potion.

In order to make the scenes work, Radcliffe analyzed how Rupert Grint and Emma Watson and the other actors moved and spoke in order to portray them correctly.

For example, Radcliffe noticed that Grint "walks with a real wiggle in his hips."

Radcliffe was also surprised by how quickly he picked up on Watson's nuances.

In return, those same actors directed Radcliffe in order to make his performances as genuine as possible.

Evanna Lynch Created Luna's Dance

Luna Lovegood arrives with a spooky glasses in Harry Potter

Evanna Lynch was the perfect casting choice for Luna Lovegood, as she was able to capture all of the character's quirkiness, charm, and compassion.

These traits were beautifully embodied when Luna danced with her father Xenophilius at Bill and Fleur's wedding, with the two flapping their arms and spinning in circles.

It turns out that Lynch came up with the dance herself.

She looked through the wedding chapter in the book and noticed how it said that Luna was spinning and Harry thought she was batting away Wrackspurts, all of which inspired her own unique take on the dance with her father.

Warwick Davis Helped Cast The Goblins

Warwick Davis at Star Wars Celebration

From playing the titular character of Willow to Wicket the Ewok in Return of the Jedi, Warwick Davis is known for playing a rich variety of roles in the movie industry.

He further expanded his repertoire by playing Griphook the goblin and Professor Filius Flitwick in the Harry Potter films, including Deathly Hallows: Part 1 and Part 2.

Davis used his success to start the Willow Agency, an organization dedicated to being the biggest agency for short actors and changing the way short people are represented in movies and TV shows.

Through the Willow Agency, Davis helped cast every actor who played the goblins for the Gringotts scenes in Deathly Hallows: Part 2.

Over 500 Wands Were Manufactured

A closeup of the Elder Wand in Harry Potter

The Elder Wand, of course, was only one of many wands in use for both Deathly Hallows movies.

In order to accommodate the extensive number of wands that would need to be used, prop master Barry Wilkinson manufactured more than 500 wands.

The Elder Wand was far from the only wand with its own design.

Each and every character - from the principal characters to the Death Eaters - had their own individual wand design.

They also had duplicates for the wands, including back-up wands for the most important characters, rubber wands for stunt work, and wands designed for crowd scenes and background shots.

Piccadilly Circus In London Was Closed To The Public

Piccadilly Circus is a busy, thriving area in London. Referred to by some as the Times Square of London, it would be a huge deal to close it off to the public to film a movie.

That's exactly what happened, though, when filming Deathly Hallows: Part 1.

Piccadilly Circus was closed off to the public for the scenes when Harry, Ron, and Hermione apparated to London after the Death Eaters invaded Bill and Fleur's wedding.

The shopkeepers even left the lights on in their stores to make the scene of a busy, thriving area feel more realistic while filming.

Finding The Sword Of Gryffindor Was A Very Complicated Scene To Film

Harry Potter retrieving Godric Gryffindor's sword

A lot went into creating the scene where Harry retrieves the sword of Gryffindor from the bottom of a frozen lake in the Forest of Dean, especially where the ice was concerned.

For starters, large, thick sheets of Plexiglass with frosty texture were used to make it look as though the lake was frozen.

Wax floating on top of the water was used to create the effect of Harry looking up at the icy surface when he's submerged in the water, struggling to reach the surface as the Horcrux around his neck tried to strangle him.

The Goblin Prosthetics Took A Long Time To Apply

Harry Potter Goblins

The goblins looked amazing, much of which is owed to the incredibly extensive prosthetics.

Thirty-eight different prosthetic masks were created so that each goblin would have distinctive looks.

Like any species, the goblins would have diverse appearances and wouldn't all look the same, something which seemed more real given the variety of the prosthetic masks.

The application and removal of the makeup was also complicated. It generally took four hours to apply and an hour to remove. This is serious dedication for the actors who consistently underwent this process while filming.

Evanna Lynch's Art Inspired The Lovegood's House

It was important for the Lovegood house to reflect the quirky and inquisitive nature of both Luna and her father.

The house reflected this nature, as everything from kitchen appliances to dressers, desks, and bookcases were covered in paintings inspired by drawings of magical beasts, which were created by Evanna Lynch herself.

Lynch's artistic creations added a perfect personal touch.

The movie's acclaimed set decorator Stephenie McMillan described the house as "wonderfully eclectic, but homey." This is a huge compliment to Lynch, as it's clear that she understands her character as both an actress and as an artist.

The paintings go well with the rare Erumpent horn as well.

The Equus Poster In The Cafe

There's a delightful Easter egg hidden in the cafe where Harry, Ron, and Hermione go to regroup in London.

Among the many posters pinned to a bulletin board inside the cafe is a poster for Equus, the play that Daniel Radcliffe starred in where he famously stood with no clothes on next to a horse.

The Easter egg is not just random fun, however, as the Equus revival that Radcliffe starred in was in London - at least before it came to Broadway - and the cafe is also in London.

Most importantly, it put a smile on Radcliffe's face.