American Hustle -- David O. Russell's magnum opus, a comedy about all things Late Seventiesish on the Atlantic Seaboard, including AbScam and the Science Oven: very entertaining.
Inside Llewyn David -- The Coen Brothers' semi-comedy about a grumpy folksinger trying to make a living in 1961 Greenwich Village. Not a crowdpleaser like American Hustle, but wonderfully lucid.