It's not about the fame and the money because if you do good work all that stuff comes.
Hence the end of the world should be awaited with all longing by all believers.
After doing 'Firefly' and moving on, I always wanted to be part of a series again. I love doing films, too, but there's just something special about being part of the team and feeling like you're actually a part of the family, and I always look to re-create that.