I saw Interstellar a couple weeks ago. I liked it, despite my wariness of Matthew Mcconaughey being the lead (astronaut didn't seem like a good role for him, turns out it works better than I thought). It's almost as involved as Inception was, especially in the second half of the movie. If you have a theater still playing it, I recommend going to see it. waiting for it to come out on disc is okay too. But seeing half-mile high waves on the bigscreen is fun.
I also saw The Imitation Game. Also a very good movie, and if you didn't know much about Alan Turing going into the movie, it takes a very sudden and dark turn. For the record, I would recommend NOT looking Turing up before the movie. Seeing everything presented cinematically and then skimming through his Wikipedia article later is definitely preferable.