What's great about musicals is their energy and go-for-brokeness - stopping the story to sing and dance. How can you not love that?
I love the idea of using film language similarly to how musicians use music - combining images and sounds in a way that they create an emotional effect.
I've always, especially through old Hollywood musicals, loved just to watch tap dancing; I adore it. I think it's fantastic.
What I love about jazz is that it's full of legends, full of myths. It's an oral history because it started in New Orleans and Kansas City, under the radar.