Continuity mistake: During the first fight scene in the castle, the fourth guard to die charges through the castle door and is killed by Robin Hood. The shot cuts and the guard is immediately followed by Sir Guy, but in between those two shots an arrow suddenly appears in the door which wasn't there before.
Continuity mistake: In one of the early scenes where Baby, the pet leopard is introduced, you can tell that the scene was shot twice and overlapped. Baby's leash has an obvious gap in it, and the two halves move independently.
Continuity mistake: Ms Froy's writing on the window has changed position when Iris spots it later.
Continuity mistake: When Jimmy Stewart is talking to his girlfriend, he gives her a flower, and at different points in the conversation, she has it over her shoulder, or on her lap, depending on the angle of the shot.
Continuity mistake: Mr. Kilbourne sits at the breakfast table and asks for his newspaper; during the scene the tea strainer to his right is facing upwards in the wider shots, and pointed with the opening down on the table in the close-ups. (00:04:30)