http://blog.blockbuster.com/2010/12/...a-free-rental/

Today only, you can head to your local Blockbuster and snag a FREE Top Pick or Value movie rental (up to a $2.99 value)! All you have to do is pick out any movie from the middle of the store that??™s $2.99 or less, take it to the counter, say the secret phrase ???Blockbuster has new low prices,??? and they??™ll rent it to you for free. This offer is only valid today, December 5th, and can only be redeemed one time and on one membership account.