The opening shot finds Michael Keaton floating in midair in what turns out to be an ancient run down theater on Broadway. The room is cluttered with junk and Michael hears the voice of a movie character he played twenty years ago. The voice tells him he was a god and he threw it all away. Birdman is a brilliantly fun film. We have the story of a has-been actor whose last great role was playing a superhero and is now doing a daring project to try and reclaim a bit of his former glory. He ends up working with…