I didn't know Joss Whedon wrote part of the screenplay. I actually thought it was a pretty good movie though. I remember that it didn't do too well at the movies and with critics (but who cares about what most of them say anyway?) but I thought it was an interesting story, good vocal talent, well-drawn animation/visuals and a kick-a** soundtrack. It's one of the few animated movies geared towards adults and I guess in that respect it's pretty unique (which might have kept people from seeing it-I didn't see it until I rented it out on video). I bought the DVD some time ago but haven't had an opportunity to re-watch it but I want to show our kids (whom have been converted to the cult of Star Wars) someday.