Redbox has a new promotion where you can earn free rentals

Through April 17, visit the Redbox Facebook page and play the Movie Matchup game for a chance to win up to a maximum of 6 free promo codes. You have to visit daily to get the most points.

RUBY: 10,000 points or more (3 promo codes awarded)
GOLD: 7,500 points or more (2 promo codes awarded)
SILVER: 5,000 points or more (1 promo code awarded)

You can also earn points by joining their text club, email list, sharing, and inviting friends