Always get to the set or the location early, so that you can be all alone and draw your inspiration for the blocking and the setups in private and quiet.
Martin ScorsesePeople say you should do it this way, someone else suggests that, yes, there's financing, but maybe you should use this actor. And there are the threats, at the end - if you don't do it this way, you'll lose your box office; if you don't do it that way, you'll never get financed again... 35, 40 years of this, you get beat up.
Martin Scorsese