I guess the idea is, that you try to reach as many people as possible yourself. You will post in the forums you use to hang around, tell your friends to watch the movie and tell everyone they should rate your video, which is a proof they watched it.... and watching it is what? Watching an advertisement for CodeGear... So the idea behind the contest is nothing else than let the codegear users take care of new customers for codegear

I am not sure, but I suppose you cannot watch a movie over and over again rating it from the same IP....