Every single director-actor I talked to, from Warren Beatty to Clint Eastwood to George Clooney, said the biggest mistake they made is not shooting enough footage of themselves.
You can say what you want about me. You can yell at me with a video camera and be TMZ. You can follow me around and take pictures all you want. I don't care.
I like roundtables because you can talk more directly to people. And you also can get kind of a vibe on what a journalist's take is on something, and have a conversation with them more.
When I look up at the screen and see myself I always have to laugh. Not because I think I'm doing a horrible job, quite the contrary, I just feel it's so surreal to feel like one person can entertain so many at one time.
To answer the question, though: I didn't always want to direct. I just liked the idea of it. If a friend was making a short and needed someone who knew screen direction, I would jump in. It would be horrible, but it led to a short, then another, and another. It was like student films.
As an actor, you can steer a scene in another direction by playing it a little differently. And honestly? I like being an actor, and I want to keep having a career.