Continuity mistake: Set in the 1930s, Steve Martin is teaching a class of grade-schoolers in one scene. This would only be picked up by Canadians, but one of the many flags on the wall is the new (as of 1965) Canadian Flag - Red Maple Leaf with two red panels on either edge.
Continuity mistake: When Chuck Norris is battling with the Triads at Mako's house, a oriental box is knocked off a table in the first shot when a Triad is slammed against the table it is on. In the next shot of the table, the box is back in its' position.
Continuity mistake: When Stallone and Williams are on the back of the train, Stallone smashes the window. Cut to Hauer. After this, the window is shown again, and the hole in it is larger than it was when broken.
Continuity mistake: In the wardrobe, as Cosmo walks away, the measuring tape is under the sewing machine and there is nothing on top of the plans for the dress. When he comes back to the machine, the tape is on top of the plans. (00:41:10 - 00:42:10)
Continuity mistake: At the end when Axel hits TG as he's coming round the corner, the head lamp TG is wearing is on or off depending on the angle of the camera.
Continuity mistake: When Kate breaks her glass, hurting herself, Donald wraps his hanky around her hand, to try and stop the bleeding, but when they start kissing and hugging, there is no blood.
Continuity mistake: Harry pulls a bat out of his car trunk which becomes yellow, shorter, and bounces, likely made out of foam, then it turns back to normal when demanding money from one of two thugs he's nailed.
Continuity mistake: There is a man with a blue hat dancing with a girl, the soldier looks outside a window and sees the same man at the same time slaughtering a pig.
Continuity mistake: In the scene where Caesar orders his guards to kill and seize Mel Brooks, he calls for more wine and a servant comes to pour him some If you notice his shirt, it is clean and white. In the shot right after he calls for it, when the servant is walking up behind Caesar laughing, you can see that Caesar's shirt is stained purple. This is caused from repeated takes, because right after the servant walks up he spills the entire container on Caesar. But yet, in the finished movie, Caesar's shirt is purple before it even gets spilled on.
Continuity mistake: When Ned and Maddy are discussing the whereabouts of her dead husband's glasses, the ceiling fan keeps changing speeds.
Continuity mistake: Before the start of the match, the teams line up and acknowledges the spectators. In the number 7 shirt for the Allies is John Wark, yet at the start of the second half, the same player is wearing a red track suit and sitting on the reserves bench. At no point was he injured or replaced.
Continuity mistake: Towards the end of the film when Gregory and Susan are "dancing" in the country park, the amount of day light changes between scenes from dark to daylight to dusk.
Continuity mistake: The actress playing Dolores is suddenly played by scream queen Linnea Quigley. The original was recast due to the actress having problems with the nudity, and shots of her were cut out as much as possible.
Continuity mistake: When Megan meets with Teresa in the park, Megan says "It's 1981", but when Gallagher later buys a cashier's check at a bank, the date is 1980. (00:54:00 - 01:08:00)
Continuity mistake: When the protagonists get in the office to talk to his client at the beginning of the movie, he's holding the bag one way outside the door, the other way around when he walks in.
Continuity mistake: When Owen shoves the hamburger back into his father, it falls on the floor right where the father is. When the father stands up to leave the room, the hamburger is now a few feet away from where it should have originally landed.
Continuity mistake: In the scene where the robots run out of battery, the female robot stretches out her right arm and shuts down in that position. The male robot walks up and stretches out his right arm and shuts down holding hands. In between shots of holding right hands, you see them holding left hands. First right hands, then left hands, then right hands again.
Continuity mistake: 1981 film: Near the end, John Heard is riding a white horse. He has his left arm missing during the whole movie, but in one scene his right arm is missing instead as he is dashing through the woods. When he comes out of the woods it is correct again.
Continuity mistake: Atouk takes a white pumpkin from Gog and throws it at the dinosaur. When it lands on the dinosaur's horn the pumpkin is orange.
Continuity mistake: When Yosemite Sam tells the devil that he has "the very varmint in mind", you can see there are no flames coming up from the pit behind him, but in the next shot flames have suddenly appeared.