When Pop and Pigeon are playing checkers, Pop is winning. Pigeon gets upset and slaps the board, causing it to fold up. In the next shot of the table, the board is lying flat, and the next it's folded up again.
When Coffee Cup is at the wedding chapel, his sea bag is on the back of his motorcycle. It's there when he retrieves the wedding ring from the bag, and again when he rips the "Just Married" sign off the back. Yet when he's being chased by the cab, the bag is gone.