Who doesn't enjoy watching movies from the comfort of their own home? Thanks to the "Redbox Free Rental Promo Codes" iPhone app, cinephiles can enjoy movies at home at a discount--just in time for the holiday weekend. The application provides promotional codes for the Redbox video-rental kiosks found at grocery and other stores. The codes are updated twice a day so users can easily find a code to receive a free DVD rental. The app also has a ranking system that lets users rate the validity and usefulness of each promo. The app, which costs $0.99, is available for download from the iTunes store. These sites are not affiliated with AFCEA or SIGNAL Magazine, and we are not responsible for the content or quality of the products offered. When visiting new Web sites, please use proper Internet security procedures.