Free DVD rentals at REDBOX?

Yeah, I don't know about you, but I've never seen one of these REDBOX DVD Rental thingys around. But nevertheless, the deal's out there that you can go and hack it and get free 24 hour rentals. Sweet!
Supposedly, all you have to do is enter a code and you get a free rental for 1 day. If you try it and it works out for you, drop me a comment here.
REDBOX Codes