:) I bet most of the people on this thread have no idea what I was talking about. That movie is 50 years old.
The movie is “The Party” starring Peter Sellars as an extra in a originally blacklisted for ruining a battle scene (hilarious opening scene in and of itself) who ends up in a select list for a Hollywood power party.
The drunk waiter was my favorite character.
A French beauty- Claudine Longet was in it. She later became famous for shooting her boyfriend american skier.