After slipping her engagement ring on, it disappears only to reappear at the beginning of Miss Honey's long-hair jam session recording.
Whilst at the resort, with everyone sitting around the table, the candles are different lengths depending on the angle of the shot.
Just after "Bubbles" finishes his "Bop-bop-a-rebop" routine the camera switches to another view. It is obviously a second take since his mouth is clearly saying 'rebop', but there is no sound.
At one point, during the last musical session when the two gangsters are holding everyone captive, the wires making the drum jump up and down can be seen.