In limited release currently, and the trailers are making it out to be much more of a comedy than it really is. Stars John C. Reilly, Jonah Hill, Marisa Tomei in really both John and Jonah's first dramatic roles.
The movie is slow paced, but really solid IMO, and Jonah Hill is certainly showing he's capable of more than just fat kid comedy roles.
I'd rate it 4/5 but mostly because of the misrepresentation of the trailers. The movie itself is good, but a lot of people won't "get it" because it's not in-your-face slapstick comedy.