Continuity mistake: During Prince Rupert's first appearance, he greets his uncle King Charles I by doffing his hat and putting it back on. In the close-up shot he is holding his hat in place but in the wide shot his hand is on his side.
Continuity mistake: The scene where Crapgame is telling Oddball about Kelly being a former officer, Oddball is holding a gold bar in his hand. The front shot of Oddball has him holding the bar at a low angle with the tapered top of the bar facing upward, while the shots over Oddball's left shoulder shows him holding it higher with the wider base of the bar facing upwards, instead. (00:37:20)