You can get a free one-night movie rental from Redbox by using certain promo codes, but the company requires you to use either a credit or debit card with every rental, as of 2015. Redbox has this requirement so it can charge the customer if he doesn't return the movie on time or damages it.
To obtain Redbox promo codes, sign up for emails and text messages from the company, as it occasionally sends codes through these methods. Visit coupon websites such as RetailMeNot, and search for Redbox codes. Codes directly from Redbox should work until their expiration dates, while codes from third-party companies may not work at all.
You can use a promo code online or with the Redbox mobile app when reserving a movie, or you can enter it at a Redbox kiosk. Redbox allows one promo code per order. If you reserve a movie, you must enter your credit or debit card information online or in the app and swipe that card when you pick up the reservation. If you rent a movie at the kiosk, you must swipe the card at the kiosk.
The rental begins when you make the reservation. If you don't make a reservation, it begins when you get the movie from the kiosk. You must return the movie by 9 p.m. the day after your rental begins to avoid any additional charges.