Saw the flick today. It was brill.
I took my ma to see it, and she's not big into science fiction at all, but she loved it. She kept saying afterwards "thank you for making me go see it." We tried to talk Em into going as well, but no dice (I don't think she ever will, either. We'll see). Definitely worth seeing on the big screen.
One thing I thought was weird out of context: there were a TON of previews (I had forgotten how many there were in front of movies, geezus!), and the first one had Chiwitel Ejiofor with a beard... and then forty minutes later, he shows up in the flick looking EXACTLY the same. That was weird.