Of course. Any form of media can. When you expose the mind to something outside of itself, it makes perceptions. When these perceptions start to take root inside of your mind is when they start changing your thinking.

Sometimes.

I'm convinced Blair Underwood beats women, he's played a wife beater 4 times, and he's a little too good at it. I guess he's just a good actor. 😆

Documentaries, sometimes.

Sure; Especially when you're an idiot with no idea with what you are doing.