Getting promo codes or coupon codes to get free movie rentals from Redbox is easy. You can get one free movie rental with each code and if you use a different credit card you can use the same code to get more than one free rental.
Redbox.com is the first place to get promo codes for free rentals. You must register with the site. They just want your e-mail basically so they can e-mail promo codes to you every Monday. You can also sign up to get promo codes on your cell phone.
Insideredbox.com is another great site to get Redbox free movie codes. You are not required to register with this site to see the promo codes. There will be several codes listed on this page at once. Each code has been used by some one and gives the date of that use.
One other site I found that lists the Redbox free movie codes is redboxcodes.com. You must register with this site, again nothing to personal. The codes are in a nice legible format including success percentage and some information about the code. One nice thing about this site is the codes are e-mailed as a list not one at a time. This site has a cell phone carrier list you can pick from to get the codes on your cell phone. My provider USCellular is not included, so I can not speak to how they text the codes to cell phones. I can send them form my e-mail to my own cell phone as a text. Then I have the codes with me.
I tried one other site that claims to list the Redbox codes. It is break.com. While the codes may be on this site, I could not easily find them.