Rent One DVD And Get One FREE At Redbox With Promo Code! December 7, 2015 by Couponer Post contains sponsored/affiliate links and I get commissions for purchases made from links. Today at Redbox, Rent one DVD and get another DVD of your choice for free! Just use promo code 9Q8SXR3A! Head to your nearest location or reserve online! Expires 11:59pm CT 12/07/15.