As Joey Germaine starts to back out of the bank door, the man who is going to bump into him can be seen waiting for his cue to start moving just as Joey starts backing up. In addition, the stunt double for Rock Hudson who jumps over the bank's counter is noticeably shorter than Hudson is. The same is true for the stunt doubles for John Schuck & Buddy Hackett, who aren't the same size as they are.
The length of the people's hair in the photo is the length of people in the 1970's, which is too long for people in the 1950's, when crew cuts were the common style then.