Matthew Broderick (who played Mouse) has an allergy to horses.
Contributed by: Mike
The plot for the movie was pretty much totally copied by an episode of tv series "Charmed", episode 46, season 3.
Contributed by: Audra And Peter
In the movie "Conspiracy Theory", also directed by Richard Donner, there is a scene where Mel Gibson's character runs into a movie theater in an attempt to get away from his pursuers. The movie that is is playing on the screen is "Ladyhawke".