http://www.videoblocks.com It's a 7 day free trial and you can download up to 20 videos/clips per day. I don't know how long they are gonna keep it free so get in on it now!! Here's my idea: download maybe 70 video clips, 70 audio clips. Construct an idea of a commercial I want, then head over to fiverr.com and get a voice over artist for $5. BAM! You got a professional quality commercial that makes your product/service/brand look GOOD AS HELL for less than the price of a AMC Theaters movie.