science. Actors don't sign a film only on the merit of the film or their character. Films are signed for a variety of reasons. Someone needs money to buy a car, someone wants to send his child abroad for education. Some need to buy a bungalow. Some want to earn credibility and awards. Some want to prove themselves. Some want to do it because a competing actor is doing something similar. Some just want to have fun. As a director, one has to know the actor's current needs.
