Trivia: According to the Director's commentary, Twentieth Century Fox Film Corporation did not want the film to be released under the title "Independence Day" to avoid legal complications (specifics weren't disclosed as to what the problems might be, but it's also why the abbreviation "ID4" was used). Roland Emmerich (director/writer) and Dean Devlin (writer) needed to justify the title, so they added the rousing bit right at the end of President Whitmore's speech at the hangar when he ends with, "The 4th of July will no longer be known as an American holiday...today we celebrate our Independence Day!"
Trivia: In the scene were Mercy claims to have stolen the coat because the cops are looking for somebody in a pink top, she actually had to wear the coat to cover a cast on her wrist which she broke while being pulled by Fox in the 96th street station chase just before Fox's sad departure.
Trivia: A few moments after Susan rides the moped over the ramp, the American tourist who asks Susan, "Excuse me, do you know if there's a Popeye's Chicken around here?" is Melissa McCarthy's husband, Ben Falcone.
Trivia: While Guy fights with Dude, there is kid with a red shirt watching the game. Behind his back there is a Deadpool poster, another Ryan Reynolds movie.
Trivia: Filmmakers were reluctant to cast actor Derek Mears in the role of Jason Voorhees because he's a very nice person in real life.
Trivia: Producers Gale Anne Hurd and Sam Mercer wanted to film the movie at the American Museum of Natural History in New York. However, the museum's administration was afraid that the film would not only cast the museum in an unflattering light, but it would also scare kids away from the museum. They were given permission by the Field Museum of Natural History in Chicago to film there, because they loved the movie's premise.
Trivia: Professor Plum reveals that he works for UNO, the United Nations Organization, in a branch called WHO, the World Health Organization. As such, he works for UNOWHO (You Know Who).
Trivia: SPOILER: Although it was the film's worst kept secret, whenever asked, Andrew Garfield would deny, sometimes vehemently, that he would be appearing in it.
Trivia: There have been rumors ever since the release of "Scream 2" that filmmaker Robert Rodriguez actually directed the scenes from the movie-within-the-movie "Stab." (This would explain why "Scream 4" states that Rodriguez directed "Stab.") However, there are also conflicting reports that director Wes Craven filmed the scenes for "Stab," and even some theories that both directors worked on the "Stab" scenes. To this day, the truth is unclear.
Trivia: Samuel Jackson spotted that the eye patch his character wears in the movie switched eyes in the promotional posters announcing the movie in Los Angeles.
Trivia: The toddler who plays young Aurora is the daughter of Angelina Jolie and Brad Pitt, Vivienne Jolie-Pitt.
Trivia: At one point, Heather Chandler asks Heather Duke, "Did you have a brain tumor for breakfast?" Ironically and tragically in real life, actress Kim Walker (Heather Chandler) died of a brain tumor in 2001.
Trivia: Sarah Douglas' voice was dubbed over by actress Annie Ross who would play Vera Webster in Superman 3. Sarah's own voice was used in Superman 2: The Richard Donner Cut.
Trivia: When all the Avengers are attempting to lift Thor's hammer, Captain America is able to move it slightly. In the comics, Cap is one of the few characters noble enough to be able to lift Thor's hammer (notable others being Storm and Beta Ray Bill).
Trivia: The English translations for the majority of the German dialogue towards the end of the film, as taken from recent BBC TV airings:
(Outside the house just before Mr Brown enters back in)
Guard: Yes, Yes everything is fine.
(as Mr Brown tries to stop Cosmic Creepers yowling)
Guard: What's that?
(after the guards enter Miss Price's house after hearing the yowling)
Guard: It's just a naughty cat, poor thing.
(after capture of Miss Price, the guard sees Mr Brown as a rabbit)
Guard 1: Jagged hare, this will be good.
Guard 2: Idiot, Do you want to wake up the whole village!
(on the battlefield, prior to Miss Price casting her spell)
Guard 1: Colonel, The bridge is ready to blow.
Guard 2: The railway, road and quay are ready.
Colonel: Good. We detonate in ten minutes. Get everything primed for then.
(start of the march)
Colonel: It's got to be some kind of trick.
Guard: Pretty good trick!
(first sighting of Miss Price by the Germans)
Guard: It's a witch sir!
Colonel: Don't be a fool, there's no such thing as a witch!
(after seeing the size of the army of advancing inanimate objects)
Guard: Shall we retreat sir?
Colonel: Retreat? We are German Soldiers! We do not retreat!
(as the Germans are running away)
Colonel: Hold the line or I will shoot you! You are German soldiers!
(back at the house after having been forced to retreat)
Colonel: There is the witch.
Guard: You said there was no such thing as a witch.
(prior to blowing Miss Price's house up)
Colonel: What are you waiting for, leave nothing behind. Quick, detonate it.
Trivia: The only combatant to get a Flawless Victory was Johnny Cage when he fought Goro. A Flawless Victory is achieved when a combatant takes no damage from their opponent.