Somebody must know something

The other day I was flipping channels and stumbled upon the credits and outtakes of an 80’s/90’s movie that I’ve never seen before. Molly Ringwald was in it, but I’m not clear on whether or not she was Claire or a new character.. Paul Gleason was in the movie as Vice Principal Richard Vernon. This is what really got my attention. Somehow, some way this is a cousin of the Breakfast Club. I have no idea how much or how little they overlap, but there is definitely a connection. I flipped over to the TV Guide channel but it was too late – already moved on to next time slot. Before I got around to looking online at TV Guide, I was sidetracked by various and sundry tasks – at any rate I never got back around to figuring out the truth about this movie. If anybody can help me, please hold out your hand of knowledge.