The trailer for Duncan Jones' new sci-fi movie "Moon" does precisely what it's meant to; it gets you wanting to see the film.

NPR movie critic Bob Mondello's review, however, suggests if you do, you'll come away with the sense that the movie failed to measure up to its trailer.

An excerpt from Bob's on-air review heard on All Things Considered today:

Sam Rockwell is such an engaging presence, in fact, he may well convince audiences that the film is what it means to be - a brain-teaser for the thinking-sci-fi fan. The problem is that the thinking-sci-fi fan's brain may rebel at the tease's premise, a bit of corporate chicanery that practically begs not to be looked at too closely. I'm as willing as the next guy - more willing maybe - to believe that greed leads corporations to devalue the humanity of their workers. But if you start figuring out how expensive this greedy corporation's unique form of devaluing would have to be, the movie stops making sense.

Still, that trailer looks pretty darn good. Rotten Tomatoes gives the movie an 84 percent rating based on 45 reviews, 38 in the "fresh" category and 7 in "rotten."