Right now, play Redbox Bingo to earn a free rental! Go here to register for the program and track your progress. Then, each time you rent a movie collect a bingo letter by entering your email at the kiosk. Once you spell BINGO, you will be sent a code for a free rental that you have 7 days to use. As an added bonus, each time you earn a letter you also earn a chance to win a Playstation 3, no strings attached!