Continuity mistake: If you look carefully at the monster (Frankenstein) you will see that his face is different in the ending scenes. The reason is, during the movie you see the monster take the woman doctor and throw her out the laboratory window. You then see the monster kind of stumble, which he really did and broke his ankle. So in the final scenes they replaced Lon Chaney Jr. as wolfman with a stuntman, and Lon Chaney Jr. finished the movie as the monster.
Continuity mistake: When the lady is singing to Bob Hope in the bar Bob has his hat a little above his hair. But in the next shot when the lady is brushing her hat feathers in Bob's face his hat is down farther on his head and none of his hair is sticking out.
Continuity mistake: When Sam says to Bugs, "This town ain't big enough for the two of us", Bugs is holding a carrot in his right hand. When Bugs runs out of the saloon in the next shot, the carrot he was holding has disappeared.
Continuity mistake: When we first see the baby bird in its nest at the beginning of the cartoon, you can see that the nest is positioned on a branch, but when we see the bird attempting to fly later on, the nest is now in the crook of two branches.
Continuity mistake: When MacRory's foot is tapping at the first hole, there is a sign saying "1" behind him. But when we see MacRory's feet, look behind him and you can see the sign has gone.
Continuity mistake: When Donald is sleeping by the tree, a large group of ants run underneath his body. At this point, you can see there is nothing by Donald's feet, but in the next shot, two stones have appeared.
Continuity mistake: When Jerry hears the door bell, he puts the magazine he is reading on his chair. But when Nibbles attempts to take the cheese off the mousetrap, the magazine has disappeared.
Continuity mistake: When Elmer catches Sylvester breaking his dishes, Elmer's position changes between shots.
Continuity mistake: When Chip slides down the drainpipe and holds on the frame to get to the window of Donald's house, you can see that there is nothing in front of the window, but when Chip is looking into the kitchen in the next shot, a cord has suddenly appeared.
Continuity mistake: When Tweety hits Sylvester on the paw with a mallet, the background behind Sylvester changes between shots.
Continuity mistake: While fishing, Mr. Peabody hooks a mermaid who is swimming underwater. When he reels her in and she leans over the edge of the boat, her hair is completely dry and perfectly coiffed.
Continuity mistake: When the big dog points his gun towards the hole in the log, the length of the log changes between shots.