St. Patricks Day Blockbuster Express Movie Rental Code (Exp. 3/18) March 18, 2012 by A Proverbs Wife 1 Comment Use code STPATTYS and when you rent one movie get $1 off the second, expires 3/18. This code can be used once per credit/debit card. You can also use this code and get a FREE rental good through 3/21. Start receiving our FREE email or RSS newsletter. It’s customized especially for you. Choose what topics you want to receive and skip the ones you don’t need.