Get one DVD rental at Redbox for free with promo code RBXLUV4U. Valid until 11:59pm CST on 3/1. To use the promo code, select Rent with Promotion on the first screen and return the DVD by 9pm the next day. You can use 1 code for each debit/credit card. To rent multiple movies, just re-use the code with each card. Find a Redbox Location.