Amazon: FREE $6 Video on Demand Credit!June 26, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. UPDATE: These codes are supposed to be used so you can get the movie Avatar FREE! You can try using it on another movie, but if it doesn’t work, that’s why.Amazon is offering up a FREE $6 Video on Demand credit! Just enter codes HDNATION and FILMRIOT in the ‘Enter Promo Code’ box on this movie page.Thanks, SwagGrabber!