Well, Shawn, you'd need an agent, and a professional portfolio, and you'd have to work your way up in the industry -- probably doing some theater or commercials, or both.
We're just a fan board, and we have no way of getting you in touch with Clint. But, I can assure you that he is a very busy man who is still making movies, and music, and he's also working with other established actors and crew. So I wouldn't expect he'd work with someone off the street without putting in their own dues and effort first.
So, that's my advice to you... find a talent agent, and see if you can land some work, and who knows? Maybe someday you can get a film role. Clint was in about 10 bit parts and many years of working in television before he got a big break. You've got a long road ahead. Good luck.