Audio problem: When singing Reproduction, a boy sings "Oh I think I'm gonna throw up"; yet he sticks his finger down his throat and keeps it there until the line is over, never closing his mouth; how did he make the 'p' sound on 'up' without closing his lips together? The words are pronounced very clearly and the camera doesn't cut from his face until after the line is done.
Grease 2 (1982)
1 audio problem
Directed by: Patricia Birch
Starring: Michelle Pfeiffer, Maxwell Caulfield, Lorna Luft, Maureen Teefy
Continuity mistake: When the twins are singing about Brad for the talent show, and Michael was playing the piano (you have to listen and watch), his hands are suppose to go across the keys but he is still doing the fake up-and-down-hand-move.
Principal Mcgee: If you play an instrument, remember, it is better to play with a group then with yourself.
Trivia: Adrian Zmed, who plays Johnny Nogerelli in this film, actually played Danny Zuko in 'Grease' on Broadway.
Answer: I don't think it is ever mentioned as to who played the two nuns. I think they're just extras.