Mi Chavo found a review of Vera Drake on CNN. I think you already know about the scene it mentions from the previews, but if you want to be surprised, don't read the following quote.

The film was Staunton's first experience with Leigh's notoriously demanding working method, which involves creating characters through discussion, research and improvisation during months of rehearsals.

There's no script, and actors are kept in the dark about aspects of the plot -- the actors playing Vera's family didn't know the film was about abortion until the scene in which the police show up at the door.

That's some intense shit. Especially since the dialog is so good. I'd say more, but mi chavo's about to pick me up from work. Full review here.