The last movie I saw in the theater was Point Break on Christmas with my family. It was a fun popcorn flick that you turn your brain off for, but if you're looking for a thought-provoking thriller I suggest you look elsewhere.
The one I saw in the theater before that was The Peanuts Movie. I'm a HUGE Peanuts fan, and I was very pleasantly surprised by it. Its modern and was adapted to reach today's younger audience, but at the same time they stayed faithful to the Peanuts series and didn't sell-out or make a crapload of pop-culture references like a lot of modern adaptations are. if Sparky (Charles Schulz) were alive today, I'll bet he'd be very proud of the finished product!
I also saw Animal House on TV with my family on Christmas Eve. Its one of my parent's favorites, and I think its seriously one of the funniest movies of all time.