Trivia: When Kevin arrives at New York Airport, the woman at the counter who tells him which city he's in is Ally Sheedy. This film was written and produced by John Hughes, who also directed her in the 1985 film "The Breakfast Club."
Trivia: Because Robin Williams ad-libbed or improvised so many of his lines, the film was ruled ineligible for the Adapted Screenplay category at the Academy Awards.
Trivia: Reportedly, Disney chairman Jeffrey Katzenberg repeatedly tried to sabotage the film's production as he was worried it would overshadow their film "Aladdin," especially as both films featured Robin Williams as a prominent character. Williams was furious, as he felt the film's environmental message was important and that there was no reason he couldn't do both films. It's believed this may have been a factor in William's feud with Disney that lasted several years after "Aladdin" was released.
Trivia: When Coach Bombay is talking to the old store owner guy while he sharpens a skate and whatnot, there is a picture of Mike Modano hanging up behind them. Modano was the Minnesota North Star's first overall pick in the 1988 entry draft. He even stayed with them when they moved to Dallas in 1993.
Trivia: At the end of the film when Scrooge is going round being nice to everyone, as he's on his way to the Cratchit's house, we see in the background a shop called "Micklewhite's". This is Michael Caine's real surname. (01:20:55)
Trivia: The Ark of the Covenant from Raiders of the Lost Ark (1981) can be seen in the same warehouse where the shrinking machine is being stored.
Trivia: When a Spengo guard is shot in the fortress docking bay, he yells a Wilhelm scream.