Continuity mistake: In the scene where the Beatles are in bed sleeping, and Ringo is getting pulled out of bed by the ring, he falls out of bed, and brings the blankets with him. In the next shot however, the bed clothes are back on his bed.
Continuity mistake: Lombard trips going up the stairs in the dark; he falls on his right side, but he waves the others to go up lying on the opposite side, facing the opposite way. (01:04:30)
Continuity mistake: When the crooks are climbing over the wall into the police station yard, when they are on the pavement, the ladder dosen't reach the top of the wall. But when seen from inside the police station yard, it reaches above the wall and looks like a different ladder.