Hmmm, last one in a theater would be Captain America. That's probably the most recent I've watched. I know I also watched Zombieland recently (again). And Nick and Nora's Infinite Playlist. My reviews:
Captain America: Pro-America propaganda. It was over-the-top ridiculous. I enjoyed it, but also disliked it. I didn't think anything in it was stellar, but so far as action movies go it was pretty good. Would probably have had a different reaction if I had been into the comic lore.
Zombieland: Probably my favorite zombedy (I think it counts as that). I really enjoy it... and Emma Stone is hot.
Nick and Nora's Infinite Playlist: Eh. I bought it for a dollar when Blockbuster closed and I realized I hadn't watched it yet. It was a typical Michael Cera-starred film. He played the awkward, bumbling hipster who will always seem like a teenager. Nothing special; not as funny as Superbad, nowhere near as amazing as Scott Pilgrim.
That reminds me, I need to buy Scott Pilgrim.