Continuity mistake: When we see Dorlock Holmes at his desk at the start of the cartoon, you can see that he is writing with the feather in his right hand, but in the next shot he is holding the feather with his left hand.
Continuity mistake: When Elmer Fudd realises that some of the elves are missing, his elf helper steps forward and you can see behind him are the other elves. When Elmer says "What shoemaker?" we return to the elf and the other elves who were behind him have disappeared.
Continuity mistake: When the bulldozer is pushing the boat on the beach, the driver is initially dark skinned with a hat. Then next shot he is fair with no hat. Then back to dark skinned with no hat. (00:24:55)
Continuity mistake: When the Tartar princess Bortai is first shown, and throughout the first part of the scene when John Wayne and Pedro Armendáriz ride to check her out, she lies in a litter shrouded in shadows or perfectly lit, depending on the shot. (00:03:40)
Character mistake: When Henry Fonda is led to his cell, shot in a prison in Queens, a real inmate yells "What'd they get ya for, Henry?"
Continuity mistake: After his meeting with Julia, Winston at home opens the drawer and in a close-up pulls the diary out from under a stack of papers which he lifted with his left hand. The angle changes, and his left hand is on the edge of the drawer, and not supporting the papers any more, nor any paper is visible. There's also a pen on the table that should have been visible before, but wasn't there. (00:36:25)
Continuity mistake: When Napoleon takes some snuff, he puts the box back on the map, but in the next shot the box is now on the table near Bugs.
Continuity mistake: During the opening conversation between Butcher and his lawyer, the shadows on Lon Chaney Jr. switch place depending on the angle - in the shots with the camera behind him, the bars cast a shadow on his neck and side of the head that is not there in the frontals. (00:01:30)