I got a chance to see this over the weekend. It's only playing in one theater here in Phoenix which is kind of disappointing. I wasn't a big fan of the way the director shot the interviews (too close, the angle and lighting made it look like the guys constantly had tears in their eyes) but absolutely loved it otherwise. Mike Collins and Al Bean are just charming as all get out, Charlie Duke is funny, Buzz and Gene Cernan are a little more reserved, but being able to hear the stories these guys tell is just great.
There is one scene that cracks me up though, due to an editing glitch. When they are discussing the tension felt in Mission Control while Neil was trying to find a spot to land, and was only seconds from BINGO, they pan across the MOCR and there, in the front row, is Mike Collins. Classic! (to be fair, they note at the very end of the credits that some scenes were edited in from different missions to provide an overall emotion for the event being discussed)
If you get a chance to see hits on the big screen you absolutely should
