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: With very little petrol available, the Bronski's chauffeur uses a horse to tow the car. Once they are at the theatre, the chauffeur pulls on the reins and gets down to open the car door, so the Bronskis can get out. Between pulling to a stop and the Bronskis being out, the reins have vanished.
Continuity mistake: When Reginald Owen who is a British agent posing as a German hits a German Captain on the head the German doesn't have a hat on.When he pushes the German out of the car when the body falls out it has a hat on. (01:31:45)
Continuity mistake: Robert Cummings is talking to a Viennese doctor. The doctor lights a match for his pipe. Then, in the next shot, there is no match.
Continuity mistake: When the moth is in the bar, he pulls off part of the man's trouser leg and eats it. You can see that the tear mark has pieces of cloth around it, but when the moth says "And pre-war cuffs too!" the pieces of cloth have completely disappeared.
Continuity mistake: Holmes says "One last warning" and looks at the Nazi on his left. In the next shot, he's now looking at the Nazi on his right. (00:03:48)
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 we see Donald Duck at the beginning of the cartoon, he is holding a piece of paper in his left hand, but in the next shot the paper has disappeared.
Continuity mistake: Near the end, as a plane is getting ready to run down the airstrip, Bogie knocks the gunman out, then uses the gun to shoot the plane in its tracks. When the machine gun starts to fire, it has a long strip of bullets, then fewer, and so on.