Trivia: Renée Zellweger, Catherine Zeta-Jones, and Richard Gere all did their own dancing and singing.
Trivia: "West Side Story" was the first film to win the Best Picture Academy Award for two directors (Robert Wise and Jerome Robbins).
Trivia: All of the creatures in baby Rapunzel's mobile are referenced later in the movie. The blue bird is the first creature she encounters after leaving the tower (it flies around her head when she sings "completely free"). There is also a white horse (Maximus), a chameleon (Pascal), a yellow duck (The Snuggly Duckling), and a cherub (the old man who dresses like an angel in "I've got a Dream").
Trivia: In order to acquaint himself with his three lead actors, director Alfonso Cuaron had each of them write an essay about their characters, from a first-person point of view. Emma Watson, in true Hermione fashion, went a little overboard and wrote an 16-page essay, Daniel Radcliffe wrote a simple one page paper, and Rupert Grint never even turned his in, as he said that is what Ron would have done.
Trivia: Joaquin Phoenix and Reese Witherspoon both did their own singing for the film.
Trivia: The Captain of the Iwo-Jima who Tom Hanks talks to at the end of the movie is the real Apollo 13 astronaut Jim Lovell.
Trivia: When Joe Dirt finds out where he lives in Louisiana, there is a guy (Framer Fran) that speaks very strangely. He is played by Blake Clarke who played the same farmer character in The Waterboy.
Trivia: Before the witch trial, you can see Sir Bedevere tying coconuts to a swallow, no doubt to test the theory people argue about elsewhere in the film.
Trivia: To make the water in the glass on the dashboard 'jump', they strung a guitar string from the underside of the dashboard to a bolt on the floor and then plucked the string.
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: 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: 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: 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.