There is a current promotion in certain areas of the country running at Exxon/Mobil stations with convenience stores.
Buy any Coke product 12-pack and get a free Blockbuster 1-week rental card. $2.99 per pack or 2 packs for $5.00. This is a pretty good deal if you drink Coke products (2 rentals and 24 Cokes for $5.00 +tax) .
Not too bad. But I think Phil was specifically talking about the ones where you get 10 rentals over 10 weeks for an average of $2.49 or $2.99 each, and get your own copy of said DVD free when it is released.
This isn't the deal you're talking about, but if you have a Discover Card, you can pick up a 10-rental card for $20, using your Cashback Bonus dollars. Not too shabby, and it doesn't have the one-per-week use-it-or-lose-it restriction that the movie deal cards had.