Seth Stevenson is a member of the cult of Joss Whedon--but thinks his comparative advantage is in making not movies but TV shows:
Joss Whedon - Why he should stick to television. By Seth Stevenson : I'd much rather he pitch some new show to HBO. Don't get all silver-screen-y on me, Mr. I've Got a Fetish for Teenage Girls Who Know Karate. I eagerly await your return to my living room.
I guess it's time to go see Serenity.