It's really two good movies put together that don't really mesh well. One is a standard rom-com set against the Apollo 11 launch. The other is a fun look at the supposedly fictional fake moon landing. Each is well done and interesting on its own, but they're not integrated well.
There's nothing about the rom-com story that is all that new. In fact, all the characters are pretty standard for stories like this.
It's the faked landing story that's the real meat of the story. I wish this was the entire movie and not just something they introduced in the second half.
All of the actors are good and well cast. The standouts are Channing Tatum as the overly serious NASA guy and Scarlett Johansson as the wily con-artist turned media specialist. They may not be Cary Grant and Katharine Hepburn, but they play well off each other. They're at their most fun one-upping each other, though Kelly is often played as too smug.
Ray Romano and Woody Harrelson are great in their supporting roles. Romano has some of the more heartfelt moments. Harrelson has some of the funniest. Of course, it's Jim Rash as the self-absorbed film director who steals the movie. He upstages everyone every time he's on screen.
The film looks good. The stuff film at the actual Cape Canaveral is gorgeous, and the classic buildings are shot with plenty of reverence. The launch itself looks great, even if it doesn't quite match the spectacle of 1995's Apollo 13.
It's a good movie for what it is. It's entertaining and well-made. But it would've been better if the two stories were more integrated or if it was split into two separate movies.