Define your type. This step is a hard one as it requires brutal honesty. If you're a woman, you'll never be cast as a man. Seems obvious, however for some reason many people who are overweight see no reason they can't compete for leading parts. You get the general idea. Look at yourself honestly. Then look at roles in film. Try and identify the roles you would play in those movies. That in essence is your "type." Now that you have your "type" you can honestly and effectively put yourself up for parts in film.
Get headshots taken. Every actor at every level has a headshot. Take the time to peruse photographers by searching online. Then contact a photographer, set up a time and have the pictures taken. They will usually take at least 100 shots of you wearing different outfits which help accentuate your "type." Have your favorite 2 or 3 blown up into 8x10 inches. Get multiples made of each shot. Then fasten your resume on the back of the headshots.
Read Variety and Backstage. It's a great way to get acting auditions for film! These are the trade magazines that the insiders read every day. On each Friday, Variety lists "films in the future." This is fantastic info because it provides who the casting directors are and the location of the auditions. Every casting office has a submission box that is placed outside so actors may submit themselves if they don't have an agent. While it is a long shot, it's worth the chance. Even if you get called in for four or five lines, you'll have a shot to impress the casting director and make a relationship for the future!
Join online services. A great way to get acting auditions in film is by joining some of the online sites that casting directors look at on a daily basis. Again, this is the protocol if you don't have an agent. If you do, then obviously they are handling this. Auditionsmovie.info, instantcast.com, and auditions.com are all great sites to check out. You may have to pay a small fee, but it will get your face out there. (These sites will allow you to post your new headshots!)
Contact your local film office. If you don't live in Hollywood or New York, you can still get film auditions since movies are now made in virtually every state in the country. Contact your local film office. They'll have an idea of what's going to be shooting in the area. Find out who the local casting director is, then submit your info to their office. If you can, try and set a general meeting with the casting director where you can sit down and introduce yourself, share with them your headshots, and maybe even a demo reel you have depending on how much work you've already done in the industry.