Hulu's most popular original movie to date, Palm Springs brings Andy Samberg and Cristin Milioti together as two wedding guests who find themselves trapped in a time loop, destined to relive the same day over and over until they can determine a way out. Full of eccentric characters, life lessons, and some funky physics, the film is a rom-com that's destined to become an instant classic.

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The entire premise has created quite a buzz with fans, from wondering how exactly the science behind the time-loop works to how Andy Samberg nailed those killer dance moves. The film took a mere 21 days to shoot, and over the course of that time the creative team came up with plenty of thoughtful details to put in to add to the viewer experience. The behind-the-scenes secrets are almost more intriguing than the movie itself.

The physics is real (sort of)

Noted physicist Clifford V. Johnson , who's consulted on the science used in Marvel movies, was hired to make sure that the time-loop logic was based on real physics. He explained what would be necessary if a time loop really did exist like the one in the film, and what components would be necessary to make it happen.

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Johnson plays himself in the scene where Sarah is teaching herself physics, and desperately trying to find a way to get out of the time loop. According to him, there are certain events that could happen that would actually create a rift in the time-space continuum.

 The costumes were specifically tailored around certain films

Nyles hawaiian shirt in Palm Springs inspired by Leonardo DiCaprio's shirt in Romeo + Juliet

Costume designer Colin Wilkes drew inspiration for the costumes from other rom-coms, such as Trevor's "nudie suit" being a nod to Punch-Drunk Love. She used clothing inspired by several different decades to give the film its timeless feel.

The red Hawaiian shirt that Nyles wears throughout the film was inspired by the one worn by Leonardo DiCaprio in Romeo + Julietas well as the various ones worn by Gilligan on Gilligan's Island. 

Circles held symbolism

If fans look hard enough they can spot several cases of circles being used in the film to represent the time loop that Nyles and Sarah are stuck in. The most obvious is the two tubes that they float on in the pool, but there's several others.

Sarah wears circle earrings, Nyles wears boxers with donuts all over them, and even Sarah's bra has tiny polka dots on it. Once fans start looking, they'll be able to spot circles everywhere!

They specifically didn't mention any other time-loop movies

Edge of Tomorrow Palm Springs Groundhog Day

If viewers think that the plot of the film is familiar, it could be because it follows the same basic structure of other time loop films like Groundhog Day and Edge of Tomorrow. Those films do exist in the same universe as Palm Springs but are specifically not in the script.

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The writers wanted the film to feel timeless, and so mentioning some of those other films would have only dated it. This way the film can stand on its own without referencing the other films, though it's a bit like a zombie film where characters act like they don't know how to kill them, as though they've never seen a zombie movie before.

The clues are in the beer

cans of Akupara beer from Palm Springs (2020)

Eagle-eyed viewers might be able to spot "Akupara" on the label of the beer that both Nyles and Sarah drink, which is the a Sanskrit phrase that means "boundless" and "unlimited", and in Hinduism evokes a turtle who represents "one who is without death".

If viewers look closely at the label on the prop cans of beer, they'll be able to see pictures and symbols that explain the earthquake that created the cave and the vortex. Googling "akupara" will also inform fans about the metaphysics in the film.

Andy Samberg hired a Broadway dance instructor for the dance scene

Nyles and Sarah dancing at a roadside bar in Palm Springs (2020)

In one of the best scenes in the film, Samberg's Nyles floats through the wedding crowd anticipating everyone's dance moves and mimicking them. To make sure the sequence was flawless, famous choreographer Michelle Johnston was hired to teach him great timing for his moves.

Johnston, who appeared in the movie Showgirls and worked on Mad Men as well as the Broadway musical turned film Chicago held dance rehearsals during the film for Samberg dance number with co-star Kristin Milioti as well.

The world's longest Run-On sentence almost didn't happen

Nyles and Sarah from Palm Springs (2020)

In the film's climax, Nyles runs after Sarah to pledge his love to her and join her in re-entering the vortex, except that she doesn't want anything to do with him. He gets only "one sentence" to say everything he needs to say to her before she makes the leap.

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In the original script the sentence wasn't nearly as long, but as both Samberg and Milioti discussed it, they felt the scene would be much funnier and more awkward if Nyles made up the most bizarre run-on sentence ever. It was more difficult for Samberg to memorize but made for a memorable finale.

Multiple endings were filmed

Nyles and Sarah in Palm Springs

While Palm Springs only took three weeks to film, much of the shoot schedule was devoted to crafting the perfect ending. When the film was wrapped, multiple screenings were held for family and friends to determine which ending they liked the best.

The one that was chosen wasn't the original one that was going to be used, but it was a unanimous winner according to those that saw the movie before its release.

It was set in Palm Springs but not shot there

Cristin Milioti and Andy Samberg in Palm Springs

Palm Springs has always had an aura of mystery about it, like an area trapped in time. It's not atypical to see certain parts of it that seem like they've remained untouched for decades, which is exactly what the production team wanted.

Although it was set in Palm Springs it wasn't shot there. Palmdale and Santa Clarita were the most used locations intended to simulate the look of Palm Springs, especially with the desert and vegetation.

The dinosaurs were included specifically to mess with the audience

The dinosaurs that Sarah and Nyles encountered in the middle of the film are also included at the end of the film, as the camera pans up from where the pair are floating in the unknown family's pool. They were intentionally placed there for eagle-eyed viewers to question whether Nyles and Sarah had gotten out of the loop.

According to the writer Andy Siara, the dinosaurs are meant to be real. If Nyles and Sarah, two characters who didn't think they were capable of love can find it, then the dinosaurs must really exist.

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