http://www.savingmoneyinmissouri.com/free-redbox-movie-rental-codes/#comments rports the following codes for free movies at Redbox. Woo Hoo!!!!!!!!!!!!
Go HERE to find a Redbox near you.
REDBOX (valid for new customers anywhere)BREAKROOM
CHANCEMONOP (valid at McDonalds locations – once this code has been used 1 million times, it will no longer work)
DVDKROG (valid only at Kroger locations)
DRIVEIN (valid only at Sonic locations)