I know girls that do it too. Most of them are hot, but a couple have weird faces. Their bodies are almost always smoking hot. I don't know what the proper term is either.
I'm not sure how long the movie is, but I'd say just go for it. I remember when I watched it, I randomly found it on Youtube. I wasn't planning on watching it, but it just got me interested. I sat and watched the entire thing. I believe it's under 2hrs, so not too long.
I doubt freestylers will ever be tested, at least not in our life times. It's just not a big enough sport on a competitive basis. I also really couldn't care less. I don't see it helping as much as in other sports. PEDs won't make you any more creative or skillful. It will only make your legs move faster to do more hardcore lowers and not fatigue as quickly. As a fan, I couldn't care less if anyone uses them or not.