Blockbuster Express is offering $1 off a One Night Movie Rental with code 1DOLLAROFF. This code expires 4/10/12. This code is valid for $1 off and should make any $1.00 rental free. Make tonight a movie night! You can also go to their facebook page and click on the Blockbuster Express tab, click get promo code, allow the app, and there is your code. I just did mine and it doesn’t expire until 4/24/12.