What you do, is you gradually become more and more experienced, and more and more realistic about dramatic tolerance, i.e. about how long the play should be.
Ridley ScottThere's nothing really original. Alien was a B-movie. Five directors passed on it before me. Because I was into Heavy Metal, I read it, and thought, "Wow, I want to do this." I was on a plane to Hollywood in 22 hours. It was a B-movie and was elevated to an A-plus movie by sheer good taste.
Ridley Scott