Blockbuster Express has changed their system for free Movie Rental Codes several months ago. You now have to text message to receive a One-Time Use code. The new codes are for $1 off ANY movie rental. (ie $3 movie = $2, $1 movie will be FREE).
To receive your codes text the keywords below to 39777. Your codes will be sent to your phone and they will expire 10 days from the date of issuance.