Just read a post on Facebook from Blockbuster Express for a B2G1 Free Rental
The code is GE15D2 Expires Monday at midnight!
$2 for three movies is a great deal. Check your bank account to make sure they don't charge you twice if you reserve online. I had that problem a couple weeks ago, but they said it was from a glitch they were working on. So it might be fixed now, but still it never hurts to double check.