So, you're a big fan of superhero movies, are you? Do you regularly astound your friends with your unrivalled superhero movie knowledge? You might be able to recite the Christopher Reeve Superman movies word-for-word, perhaps you know which year every movie in the Marvel Cinematic Universe franchise was released, and you might even know why Fox thought that awful 2009 version of Deadpool was a good idea, but what about all that lesser known superhero movie trivia from behind the scenes?
There are a lot of facts about movies that might just take you by surprise - and that's what this video is all about. Here's a special superhero edition of twenty rapid fire behind the scenes movie facts...
In The Mask, when Jim Carrey is being chased by a group of gangsters and pulls a wet condom out of his pocket, the line "Sorry wrong pocket" was entirely improvised by Carrey.
The first trailer for Watchmen premiered with The Dark Knight in 2008, and it sparked so much interest that it sent the graphic novel back onto the bestseller list. Booksellers Barnes and Noble Bookstores reported selling out of the novel.
Howard the Duck
The role of Beverly Switzler in Howard the Duck ultimately went to Lea Thompson, but it was auditioned for by the likes of 80's icon Phoebe Cates and popular vocalist Tori Amos.
Amy Leland, the female actress whose voice is used for the airplane computer in Superman Returns, is also the same voice actress used for Professor X's Cerebro in the X-Men films, which are also directed by Bryan singer.
Guardians of the Galaxy
Chris Pratt improvised a lot during his performance as Star-Lord in Guardians of the Galaxy. Examples include the obscene gesture he gave after being captured by the Nova Corps and the line about his ship looking like a Jackson Pollock painting under a blacklight.
Batman v Superman: Dawn of Justice
Scott Adkins auditioned for the role of Batman in Batman v Superman: Dawn of Justice. He had previously played the awful version of Deadpool in X-Men Origins: Wolverine in stunt scenes that Ryan Reynolds wasn't needed for.
In Deadpool, the titular character says that he looks like he was "bitten by a radioactive shar-pei" - a wrinkly breed of dog. This is a reference to a Deadpool comic in which the character said that he looks like a cross between Ryan Reynolds and a shar-pei.
The late Burgess Meredith, who played the Penguin in the Adam West Batman television series of the 1960s, was asked to play the Penguin's father in the opening of Batman Returns, but illness sadly prevented him from doing so.
Ron Perlman legitimately broke a rib while filming the subway scenes in Hellboy. He crazily jumped onto a train that was coming towards him at about 45 miles per hour.
Rapper Ice-T was paid an astonishing $800,000 to appear as the kangaroo-like T-Saint in the awful 1995 comic book movie Tank Girl.
Marvel legend Stan Lee famously cameos in most Marvel movies, but he didn't appear in Blade. He did film a scene, but it was cut from the final movie. He played one of the cops that entered the blood club and discovered Quinn's body on fire after Blade had been there.
It has been said that, in order for her to get in the mood to play the Enchantress in Suicide Squad, Cara Delevingne listened to rock music ranging from Nick Cave to Megadeth.
For the filming of the crane accident scene in Spider-Man 3, Bryce Dallas Howard performed her own stunts, unaware that she was actually pregnant at the time of filming.