Continuity mistake: Milly is on the balcony with Mr. Hanson. The sliding glass doors behind them are not fully open and the drapes are drawn well past the door opening. When Mr. Hanson stands up, the camera cuts for a closer shot and the sliding glass door is now fully open and the drape is drawn to the door opening. (00:56:00)
Continuity mistake: When Robert Wagner falls, halfway up the mountain, Spencer Tracy's rope, which is attached to Wagner, runs through his hands, making them bleed, but, finally, he gets a grip and he pulls Wagner up. As we see Tracy's rope, as it slowly comes up, but there is no blood on it.
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 Daffy (dressed as Bugs) is fishing at the pier, there is a can beside him that keeps disappearing and re-appearing between shots.
Continuity mistake: Just after Bader has been told he'll never fly again, he meets his girlfriend on a bridge. As they walk along the bridge, Bader is on the girl's left, but, in the long shot, Bader is now on the girl's right.
Continuity mistake: Bradford's coat collar alternates between turned up and turned down throughout the scene outside the bowling alley. (00:15:00)
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.