I got this in my email today from Redbox:

As I always say, "If it's free, it's for me". Since they already have my email anyway, I figured it wouldn't hurt. So I signed up and they already sent me a code for a free rental. Now if I can only find time between "Blue's Clues" and "Thomas and Friends" to actually be able to watch a movie, I'll try it out and let you know how it goes.