Is Baghead One Of The First Mumblecore Movie?

It's actually called a Mumblegore movie as Baghead is a horror character, but this fim is actually about the relationships of the characters. Are there scares? Sort of, but this isn't the really great thing here, the actors, one of whom is Greta Gurwig, and the simple script, are what matters. It works, and that's because the emotions and the real work do; who'd have thought, eh?