Revealing mistake: When the dead padre is pulled across the ground he lifts his head (not to get hurt?), and when he is finally placed on the bench he blinks and breathes. One of the most most living dead I've seen in a movie. (01:30:00)
Revealing mistake: When Bill and Ted, are playing Battleship, with Death, you can see at the bottom of Death's neck where the crease is of the cap that is covering the actors head to make it look bald.
Revealing mistake: When Dr. Marvin is choking on his food Bob gives him the Heimlich maneuver. He then puts Dr. Marvin on the couch and jumps down on him. Dr. Marvin expels the food just before Bob knees him the third time. This is best viewed in slow-motion. We are lead to believe that the third knee drop caused the food to be dislodged when actually the food is spit out just a split second prior to Bob landing the knee drop. (00:53:20)
Revealing mistake: When Kathy Ireland is trying out, watch one shot from the side and you can tell by body type it's a guy in a wig kicking the ball.
Revealing mistake: During the dinner, Dennis is addressing his sister. As she comes over by him, look at his left sleeve. It appears to be matted in, as it has a definite line at the edge of the fabric, where all other edges are softer. Then as Eldona sits the plate down, you can see a flutter between the images of Dennis' arm and the plate. Then, as Eldona turns around, you can see her dress through the gap between Dennis' arm and the plate. (00:36:30)
Revealing mistake: After Ralph goes to the club and meets Miranda there's a scene where the front page of The Daily Telegraph newspaper (dated March 9, 1990) is show. It has the headline "From Uncle Same to Buck 'ham'" with a picture of Ralph. The article under the headline hasn't been changed from the original news story. The article begins, "Mounted police broke up a mob that had looted shops and attacked a police station in Hackney, ease London, last night after a poll tax protest by up to 5,000 people blew up into a riot. With running battles between officers and demonstrators. Scotland Yard said at least 50 people were arrested and several police officers hurt in the worst violence yet seen in the campaign against the community charge."