I thought the commercial had some sort of fine print on it that stated something about terms & conditions. I could be wrong of course but I see this in all kinds of advertising and don't see nearly the uproar that I saw at Blockbuster. Then again, I knew it was too good to be true so I made sure to check on it before renting. 😛
BTW, here's my 'Blockbuster online' sucks plug. They never have anything I want in stock. I mean, I'm sure if i wanted Never Been Kissed I could get a copy but it took about a month for Amores Perros to finally move from #1 in my queue to the shipped movies section.