Whether you're a Trekkie or you think Spock was the guy who wrote baby books, there's plenty of action and laughs here to keep you interested. Even if you have no idea who these people are, the film strikes just the right mix of exposition, action and character development. The sets are wonderfully rendered mixtures of Classic Trek and new 21st century design sensibility (the costumes too, mostly) and unlike past Trek outings, the multi-cultural, -racial, and -planetary crew feels truly integrated and commonplace. (And if you've been gnashing your teeth for months that "JJ Abrams is RUINING EVERYTHING", rest assured that the movie itself addresses the changes and makes them feel organic even to this die-hard Trek purist.)
If you are squeamish; offended by violence, nudity, or sex; slavishly devoted to the comic book; expecting an Iron Man-style superhero movie; and/or need things explained in detail, avoid this movie like the plague. Luckily, the rest of us have something worth watching in this adaptation. However, despite the solid performances by Patrick Wilson, Jackie Earle Haley, and Jeffrey Dean Morgan (who somehow manages to pull off a sociopath you still want to care for, if only a little bit), the movie is mostly slick action and effects with little emotional impact - with the exception of a very few scenes, there is not much under the surface. Still it's a must-see for audiences mature enough to handle it.