Get one DVD rental at Redbox for free with promo code K7HZN4V4. It takes $1.20 off, which is the cost of most DVD rentals at Redbox. Note that it will also take $1.20 off a Bluray or game rental. Valid through 10/26 only. At the time of this post, you can use one code per transaction. To rent multiple movies, just re-use the code in separate transactions. Find a Redbox Location.