I don't see "Ides Of March" as part of the Blockbuster Movie Pass? I see it as a Movie On Demand, not associated with Blockbuster..... I may not have checked every movie, but I think any movie streamed with Blockbuster Movie Pass is free.
You're mixing two different services. One is new, very new usually movies that you can watch instantly at home, no downloading. The other is new, sometimes not quite as new or old that you wait for and have to send back. (Or if streaming, a very limited amount of movies, some newer, many not) I'm not knocking the Blockbuster free movie by mail at all, quite the opposite, it's a great addition to the $10 movie package. But that is a completely different service than On Demand.