This is a concept film that explores the role of movies as metaphors for our lives.
I personally thought it was brilliant. While never said explicitly (that would have ruined the metaphor), I liked the implied parallel of Blake's "audience" as "God" or whatever spiritual force connects people to each other.
Do movies have a role in our lives other than being our "chocolate-covered treats," something we give ourselves only when we feel we deserve a reward for all our work and hardships? Can movies in fact be nourishing? Can they inspire us to live more fulfilling, more productive lives? "The Movie Hero" addresses these questions beautifully. I completely loved it.