Other mistake: The chunk of hair that Ted has in the car is in a ponytail, and much longer than the hair cut off in the door.
Other mistake: When Apollonia is smacked in the face by the Kid after announcing she's joining Morris's group, she falls into a dresser and knocks all the magazines off the top of the dresser on to the floor. When the same scene is replayed during the 'When Doves Cry' sequence, the magazines don't fall to the floor.
Other mistake: Early in the movie, Sir Gawain gets on his horse, in a full suit of armor, by himself. Later, he is hoisted onto his horse by what looks like an early design for a crane. Armor is heavy and Sir Gawain would have to be hoisted every time he wanted to ride with armor on.
Other mistake: 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. In addition, he is changing the oil at the rear axle.
Other mistake: When Ralph's Renault R4 goes head on into the shallow and rocky river it emerges without a dent. (01:18:45)
Other mistake: The scene in the bookstore is shot in reverse, which although humorous, isn't a mistake. The mistake is the fact that what the characters say and what the subtitles say don't match up. When speaking the character's dialogue comes out all garbled, and when a name is brought up in the subtitles there is no reference to that person's name in the conversation. (00:47:10 - 00:48:15)
Other mistake: When she breaks the TV's with her "voice" they pan to the salesmen. The glass display case is intact. Had her pitch actually been able to break glass the display case would have gone as well.
Other mistake: When they're walking on the Tri System, you can see the wrinkles in the fabric used to create the foggy background.
Other mistake: When the movie starts and the reverend is talking, he smacks the Bible. Right afterward, a kid in the audience can't help staring at the camera.