Debbie Moon at 2012-01-25 18:15:24:
Excellent questions. I'm seriously considering giving up on a first draft script because I don't feel anything for it - in fact, I'm working on anything *but* that...
You have to be passionate to be committed, maybe. And passion is more than just an emotion. Passion keeps you writing even in the twentieth draft, because deep down you still have a connection to your story, even if it's not the big emotional rush you had writing those first pages.
Maybe it's like a marriage: you don't always feel what you felt on your honeymoon, but your relationship is still real.