2. Feel free to put up ads around the place asking for actors or crew members. It's quite often the case that people are happy to do work for free.
3. Family and friends can be good - often they're the people who will most likely say yes, but be wary - they might not be any good! And it can also sometimes be hard to stay objective when directing your little sister.
4. Ask people to help with things that you may not how to do yourself, like operating microphones or making lunch for people during the film shoot. Also don't forget equipment, which is extremely important.
5. If you don't have your own camera, borrow a decent one from someone you know, or hire one. As a general rule, if you're hiring equipment, the more expensive the better.
6. Also make sure you have a decent enough computer to edit with. You don't want to be stuck with a whole lot of footage but nothing to do with it!