How does the director decide whom to cast?
Many factors are considered. Besides the obvious ones of determining whether you could be successful at singing or acting the role convincingly, the director must consider your height, body type, and age. He also considers who else might be cast and whether you’d be the right partner. Sometimes people have their hearts set on a part that simply isn’t right for them. The director knows what he needs to make the show a success, and he is doing you a favor by not casting you in such roles.