Lose the ego. You may be the best actor this side of the Mississippi, but you need to start small, in non-paying, DVD copy independent shorts or features that may or may not go somewhere.
On set, regardless of the stature of the film, be kind to everyone. You never know who will hit it big, and if a director does, you do not want him to remember you as a cocky brat on set.
Once your resume is padded with the independent shorts and features, likely without pay, put together a reel.
This reel is supposed to showcase not just your most dramatic scenes, but ranges of ability as well.
Send the reel to several casting agencies, asking to be taken on as a client. From there, the agencies will be able to help get you paying independent gigs.
As the resume continues to build, get in touch with agencies across the country, as well as the casting directors for movies filming in your area. You may be an independent "star," but if James L Brooks wants you as an extra with a line in his feature studio movie, you say yes!
Network like crazy, getting your name and reel out there. If you don't bust it for yourself, nobody outside of an agent will.