Here is a new Redbox code that is valid through 1/18 for a free DVD rental.
45TH8787
You might consider testing the code by reserving your rental first at Redbox.com. You can ensure the movie you want is available and you can be totally certain the code will work for you at the location of your choice.
You will need to return the movie on time or they will charge you a second night rental.
Verified! It works perfectly at the kiosk.