In the "Pass That Peace Pipe" dance number, the arrangement and number of sodas on the counter changes between shots.
At the end of "The French Lesson" number, there is a cut to a new angle as June Allyson and Peter Lawford are laughing. Their laugh starts over after the cut, without the previous laugh dying down.
In the Pass That Peace Pipe sequence, when Joan McCracken holds the pipe and walks backwards, four people can be seen sitting at the table left of her. Then, she throws away the pipe and the camera switches from close up to wide angle for the start of the dance. The table left of her now has only three people sitting at it. The blonde girl with blue shirt has vanished.
In the locker room scene where Peter Lawford tries several times to call the sorority house using the pay phone, the first time he gets a busy signal and pulls his coin out of the slot, You can see the prop phone almost come off the wall. On the following call when he gets another busy signal, he holds the prop in place with his right hand while pulling out the coin.
The students all look much too old to be in college, worse even than in Grease.
During the "Varsity Drag" musical number, one of the chorus girls is accidentally pushed out of step.
One song offers lyrics in English each translated into French. "I love you" is translated as "je vous aime." "Vous" is a second person formal pronoun and in the context of expressing romantic love, the second person familiar pronoun would be used ("Je t'aime").
None of the women are either dressed (by Helen Rose) or coiffed (by Sydney Guilaroff) in anything that even faintly resembles authentic 1920s fashions. All the hair styles, in particular, shoulder-padded, figure hugging clothing, and ankle strap shoes, are, at best, 90% 1947 and 10% 1927, and Lennie Hayton's brassy musical arrangements are 100% 1947.
During several of the songs, the audio and what the actors are saying don't match up. Especially during the party as Tommy finishes singing Lucky in Love.