FREE Redbox on Demand Movie Rental Posted On June 23, 2020 Get a FREE Redbox on Demand Movie Rental! Scroll down to the entertainment section and on the second section down (Shows Tidal offer) click the right arrow and look for the Redbox section. Click view details, then login or register for a Samsung account and enter your email to get the promo code. The code is valid until July 15.Exp. 7/15/20 at 11:59:59pm PDT. 1 use only. Valid for the stated discount off the fee of a Redbox On Demand rental transaction at $5.99 or less.