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One of the more sought after positions in the entertainment industry is that of film director. Film directors essentially determine how a movie or television show is going to be filmed. The level of autonomy a film director may have varies greatly: established film directors have complete artistic control. Directors who aren't established take orders on what the final filmed product will look like. Directors also typically work under tight time deadlines: the costs of filming either a movie or a television show are enormous, and directors who don't get projects completed in a timely manner will either be fired or won't get further assignments.
Though it isn't absolutely mandatory, becoming a director usually means first completing film school. Film schools have gone from a specialized department found in only a handful of universities to being quite typical. There are certainly established film schools that hold particular prestige however: the film schools at New York University and the University of Southern California come to mind. Many film schools, prestigious film schools certainly, have many applicants and are quite competitive and difficult to get in to.
Don't make the mistake of believing that graduation from film school will mean a director's job in the film or television industry. The far more likely outcome is a menial entry-level entertainment industry job. There's an expression in the entertainment industry that everyone must pay his or her dues. This expression may be an overstatement, but not by much. The overwhelming majority of people who work in the entertainment industry start off in lower positions and if they're fortunate, eventually find success in positions of autonomy. Difficult though it may be to believe, there are many individuals with film degrees from prestigious and expensive universities who are working as waiters or in some similar capacity. The lesson in this is clear: Before committing to film school, be completely certain it's really what you want to do, and be prepared to potentially wait a long time for the opportunity to put your training to use in a professional entertainment industry setting.