If you have a 5D Mark II, a 7D, or a 1D Mark IV then you can enter this contest. If not, you are out of luck. Multiple entries are allowed at $40 a pop. Not Cheap!
However, the Can-Do Film Fest has some very BIG Canon Prizes, such as a 1D Mark IV, a 5D Mark II and canon lenses. I listed the prizes for each category here.