No matter what - rehearsed, under-rehearsed, over-rehearsed, doubts about rehearsing - the first gig is always the first gig, and you put on your little praying hat, batten down the hatch, and do what you do.
I know we didn't make an anti-Semitic film. This is what the Gospels are. And it's none of my business what other people think of me.
Listen to advice. You don't know how many writer's conferences I've taught at where at least half the audience fights all the conventions of the field.

