Funny you made this comparison, I think of Lawrence and Bullock as movie stars, but Ronan and Kidman I would think of as real actresses.
Anyway, I watched this last night and its such a beautiful movie. Ronan is fantastic and its already on her way to having a Cate Blanchett/Meryl Streep type of career. I liked Emory Cohen in The Place Beyond the Pines, and he was really good in this too, I hope he gets more roles