Continuity: In one scene, Tom Hanks leaves a room while the last part of "Something Isn't Right" by Oingo Boingo is playing. When he reenters the room, the middle of the song is playing.
Other: In the beginning of the movie, when the mechanic is working on the car on the lift, he says he has to change the oil in it, the chassis drops to the ground, there is no engine attached to the chassis or body.