Revealing mistake: When they're dancing on the bowling alleys, they couldn't be waving their bowling balls about as if they were made from foam - bowling balls are heavy!
Suggested correction: Bowling balls can weigh as little as 3 pounds.
Revealing mistake: In the scene where Chuck finds Bill in the morgue vault listening to the recording of Chuck telling him to shut up, take note of Bill's thumb on the rewind button of the tape recorder. You can hear the tape recorder rewinding to replay the words, "Chuck to remind Bill to SHUT UP" multiple times but Bill's thumb does not move at all until he turns the recorder off. (00:30:00)
Revealing mistake: When the little girl runs towards her grandmother and knocks another old woman out of the way, the other woman crashes into the wall of the terminal and it wobbles, showing it's a thin set wall. (00:14:35)
Revealing mistake: When the bugs crawl out of E.G. Marshall's mouth, it is obviously a dummy.
Revealing mistake: During the Eddie and Nick fight scene, you can clearly see the stuntman for Eddie. He looks nothing like him.
Revealing mistake: When Coach Janna hits Russ Thorn with the fire poker, it's very apparent that it's made out of rubber. (01:07:20)
Revealing mistake: Jen Moo cuts off the God Skills monk's ear, but as Ching picks it up, it strangely shows no opening for the ear canal.
Revealing mistake: When Rick is having sex with Carmela, it's obvious that it's completely fake. The filmmakers tried to hide it by filming through the keyhole and only showing half their bodies but at one point you can see that Rick is lower than Carmela. Also Carmela is voiced over because her voice doesn't match her mouth. (00:43:10)
Revealing mistake: Victor(ia) is supposed to be a male performer. Yet in the musical number closeups, the outline of her female cleavage is too obvious, in spite that she would be wearing bosom padding for her costume, and Patrons seated in the front row and the balcony would notice the difference.
Revealing mistake: Chong arrives at the curbside of the airport. The guy pulls up in a yellow Datsun for him. The fender is already dented. Chong starts throwing the guy into the fender at the exact point of the dent - the fender must've gotten dented in an earlier take.
Revealing mistake: When madame Musquin wanted to hurry up to get out of the elevator. Thérèse wanted to help her to go down, but she got kicked on her nose. You can see that madame Musquin really kicked the wall.
Revealing mistake: When Jarvis and Tommy are driving to school, and he asked if they got the black guy, the sun is overhead - but when they get to school, and they're walking and talking about it, the sun is to the left - like it's mid-morning around 930. You can see the shifts in the sun for about a span of about 4 minutes during that time. (00:04:50)