Trivia: There is a little reference to the novel One Hundred Years of Solitude by Gabriel Garcia Marquez. Ben, the robot, upon meeting Jimmy says something like "Solitude is great, but 100 years of it..."
Trivia: The photo used on the newspaper clipping of Joe Kingman and his wife is actually a real photo of Dwayne 'The Rock' Johnson and his wife Dany on their wedding day.
Trivia: The Iron Giant has only 53 words of dialogue in the entire film.
Trivia: All of the singing in this film was dubbed by adult vocalists.
Trivia: Jim Carrey was the first choice for the role of the Genie, but had to decline due to his recent involvement in a civil lawsuit.
Trivia: The part played by Meatloaf was first given to boxer Frank Bruno who quit the film during filming as his son wasn't allowed on set to get the spice girls' autographs.
Trivia: Not a mistake, just a fact. Exactly 2,357 pies were used in the big pie fight.
Trivia: The doctor who tells the family Hub checked himself out of the hospital is Eugene Osment, Haley Joel Osment's father.
Trivia: Riley is the only character in the movie with both male and female emotions.
Trivia: A popular film poster shows Emily and Victor reaching their hands toward one another. Emily's bony hand is on her right and Victor's suit and vest are backwards (note its buttons). Some say it was for legal reasons - Johnny Depp's name was supposed to appear on the poster first because of a contract, and they wanted the characters underneath the corresponding star names, hence the issue. Others say it was simply because the picture looked better with the bride on the right side.
Trivia: According to Disney there were 6,469,952 spots painted on the dogs.
Trivia: This film was supposed to be Steve Coogan's ticket to Hollywood stardom, but it was not to be. The film tanked at the box office, losing almost US$80,000,000. This is the biggest loss by any independent film ever, and it bankrupted its producers.
Trivia: In the closeups of Goob on the baseball field, there are two billboard advertisements on the fence behind him - one is "Jungle Book" featuring Mowgli with Baloo, and the other is "Toy Story 2" featuring Woody, Jessie, and Bullseye.
Trivia: The real RL Stein makes a cameo appearance as the principal Mr. Harrison who presents Sonny with his science award at the end of the film.
Trivia: During the making of this movie Christopher Reeve and Sidney J. Furie didn't get along at all and often clashed with each other.