It was the cover for a videocassette for a movie about a girl's school, "The school for Mad Girls".
The school was run by a rag tag bunch of clowns featuring Carol Burnett, Annie Potts and John Malcovich. They all had headfulls of curly hair and wore not-quite-full white face paint.
Post dream I imagine the school is actually called Mrs. Combsbury's School for Girls.
Bernadette Peters would have a role, and there would be a teapot shaped little boy who was there inexplicably, for comic relief.
If I could photoshop or draw, I'd provide a picture to go along with this dream. It was good enough to get up for at 3:45 and write about.