Score a FREE Redbox movie rental code valid until 4/30 and get a $1 off coupon to use today only.
Free rental: Text APPNOW to 727272 and you will get a return text with the free DVD rental code. According to the text, the code is only valid on the Redbox app, but it may work on their website as well.
GET the app from Redbox.com.
$1 off coupon: There is also a coupon code for $1 off a rental today, 4/1/16. Use code APRILFOOLS when you reserve a movie on their website or through the Redbox app.
Once you rent the movie, you then go to the Redbox kiosk to pick it up. You will need to swipe the same credit card that you have registered with them online when you get to the kiosk so they know which movie to retrieve.You won't be charged for the movie unless you return it late.
I recommend signing up for texts from Redbox.com. They will regularly send codes for free and discounted movies and games.
Thanks to earlychd99 and FreebieShark.com for the codes!