Usually BLOCKBUSTER and Netflix offers 14 days free trial, but following code can be used for one month trial membership.
Netflix Trial Code: 80004698
BLOCKBUSTER Trial Code: 1355ta
I tried both service. Personally I like BLOCKBUSTER because they offered in free store coupons. Also BLOCKBUSTER is near to my work place and home. Now with their Total Access program it is wonderful.
Netflix is good choice if you don’t like going to store. Also they are very fast compare to BLOCKBUSTER in delivering video at home.
You can try both service, but make sure to cancel the service before one month if you don’t like the service.