First, before anything else, DO NOT watch this movie in 3D. The 3D sucks. In general I'm not a fan of 3D but it has gotten better and studios have been more subtle about it. In this case, the 3D was added in post-production instead of filming in 3D. It looks like a muddled mess.

Overall this movie is fodder for sci-fi buffs. The story is fun. The plot is clear and doesn't feel too contrived. The acting is great. Tom Cruise is a pleasure to watch as usual. While the plot isn't original on a level of say, Inception, it is still pretty good. Most of all, this movie is *fun* to watch. You're rooting for the heros and it keeps you engaged. This is not the kind of sci-fi movie that will make you think of your universe in a different way, but it is about as much fun as you could hope for in a sci-fi action movie.