Continuity: When the villain offers him a bribe, James Cagney's handkerchief keeps changing between takes, peeking out of his pocket at different lengths. His arm positions also change between shots, even though he hasn't visibly moved.
Great sites
Continuity: After the bad guys frame Cagney for drunk driving and stage an auto accident, the smudges on his face change shape and position several times between shots.
Continuity: When he enters Canning's office, James Cagney's coat pocket handkerchief disappears once he's inside the door.
Revealing: During a fight scene in which a bad guy flips James Cagney's character over his shoulder and slams him against a wall, you can see that it isn't Cagney being flipped. The stunt double's face is briefly visible.
You may also like: Daydream Believers: The Monkees' Story | The Dead Zone | The Dresden Files | The Explosive Generation | Dark Shadows (1991)