There's not much in life that comes close to making a movie. It's a process that works for everyone who wants to be a film maker, even if they don't know exactly what it takes to be successful. I suppose that's true about most things in life--you're never completely successful unless you throw yourself into it--but making movies takes something really special. Determination, the desire to work harder than you've ever done before, synergy (one of my favorites, look it up), creativity. A little bit of luck if you want to make it big.
Not everyone finishes the job, but they usually get enough out of the journey to say it's a great profession. Unfortunately, it's hard for those halfway there to stay employed. The business thrives on overachievers.
I'm a screenwiter and independent filmmaker who got started watching Saturday afternoon horror movies on TV. I love the old flicks, no matter how cheap they look. I love the process of making movies, working with a group to bring something special to life. Most of all, I like getting into the heads of actors, screwing with them just enough to get their very best onscreen.
