Continuity mistake: When the guys use the key to steal the car, its back license plate number is 4N-4290, but when Chico pulls into the drive-in, the front plate number is SV-5875. Then when Chico reverses the car, the front license plate number is 4N-4290. (00:42:40)
Continuity mistake: When Chico phones Jane for a date, it cuts to both of them riding on the motorcycle. In these shots, Jane's hair is quite long and well past her shoulders, but when they arrive at Coney Island, Jane's hair is much shorter, not even reaching her shoulders. This happens again, when Chico picks up Jane at her house with the "borrowed" Packard, the back of Jane's hair is long, but when they get to the drive-in her hair is shorter. (00:18:25)
