Yes, you can get free rental codes for Blockbuster Express, but there are times when you may have used all the codes out or the ones you have are expired. This deal is great for those times! Get 5 free rental codes for just $2!!! If you aren't a member of Groupon, then go here to sign up. You will probably find this deal on the right hand side of the page once you get signed up. If you are a member, then go here to log in and get the deal.