depends on the movie I guess
I have already played in two movies (just small amateur productions). Good fun. In the latest one I was the main character, and I play a really weird guy that for some reason decides to buy all the canned tomatoes he can find in a supermarket, thus disrupting the local economy. It was a fun role to play and we had a good laugh filming, but people who saw it seem to think I am crazy in real life, so it hasn’t helped my reputation much.
If I were ever asked to play in some major Hollywood film, I’d go for the more powerful roles. Action heroes, maybe villains. But the loud, active types (the Joker as opposed to Saruman).