Marilyn Monroe, on why she was sometimes difficult on the set, wanting her performance to be perfect:

I used to go to movies on Saturday night when, for instance, when I worked in a factory, and that was my only time that I could enjoy myself, really, that I really relaxed and enjoyed myself, and so, I used to be really disappointed if I went to a movie — 'cause I waited all week to go to the movie, and I worked hard for the money I spent — and if I went to a movie and it was a bad movie and I thought people didn't do their best, kind of did it sloppy or something, I really was mad, you know, angry when I left, 'cause then I didn't have anything to go on for a whole week.  I'd wait for another week.