Other mistake: After the great fire scene there is a raccoon that drags her baby to shore and begins cleaning it. A few seconds later the baby has jumped across to the other side of his father and siblings, but the mother does not stop licking. This error has since been fixed in newer releases.
Continuity mistake: At the beginning of the short, we see two aeroplanes flying at the Air Training Base and both aircraft have circular discs on the back of them, but when they fly past the window where Donald is looking out in the next shot, the discs on the planes have gone.
Continuity mistake: When one of the doctors touches Donald's stomach with a stethoscope, Donald has his hat on his head, but when Donald is pulled off in the next shot, his hat has disappeared.
Continuity mistake: When Bugs is holding the stick of dynamite in his left hand, he puts the other hand in his ear to avoid the explosion. You can see that Bugs is holding the stick with all of his fingers, but when we see a close-up of the stick in the next shot, he is holding it with only two fingers.
Continuity mistake: When Porky is about to put the pole down into the ground, you can see that there's nothing behind him, but in the next shot trees have suddenly appeared.
Continuity mistake: When Elmer opens the door and finds Bugs at the dressing table in ladies' underwear, you can see the door is positioned on the left hand side of the frame. But when we see Bugs, the door is now on the right hand side.
Continuity mistake: When we see Elmer reading his book at the beginning of the cartoon, the strap of his gun switches shoulders between shots.
Audio problem: When we see the moth singing on his way to the bar, his mouth doesn't move.
Continuity mistake: When Jerry runs onto the record player, he runs next to a button panel and there are four buttons on it: Fast, Stop, Start and Change. But when he is pressing random buttons later on in the cartoon, a "Record" button has been added and the "Change" button has disappeared.
Continuity mistake: When Daffy sees Dr Jerkyl's house, he is holding a telegram in his hand that disappears when we see him in the next shot.