While the boys are praying out front for the injured Pee Wee, Whitey goes behind them and grabs a branch of a tree with no leaves. When he turns around, the branch now is covered with leaves.
The blackface Whitey wipes off in line doesn't match when he arrives back at the barber.
In the march to the tavern, Tony is to the left in all but two shots when he is to the right.
Whitey lowers his baton twice when he steps up to make his election speech.
Pee Wee is hit by a car. Whitey rushes to see whether he is injured. You'd expect the car driver to come and see as well, but the driver has disappeared.
When Father Flanagan meets with Hargraves in the latter's office, he speculates that an adult committing a certain crime would have it dismissed as "temporarily insanity". He should have said, "temporary insanity".