The worst part was waiting around. Sometimes you are ready at 9 a.m. and you don't start until the afternoon. Occupying your time while you wait is the hardest part of the movie.
There is no privilege in restriction. In other words, I disagree with people who say restriction makes you more creative. I think that's a misleading slogan. I might have been more creative without them than with them.
It is good taste, and good taste alone, that possesses the power to sterilize and is always the first handicap to any creative functioning.