Stanley Kubrick's space epic isn't exactly the benchmark most Hollywood directors would like their movies to be compared against. The movie spends a lot of time getting to its namesake mission, but this style is refreshing. The movie actually takes time to introduce the characters and their motivations to the audience. In a day of movies that try their best to get to the action as soon as possible, its nice to see an adventurre movie where you get to know the characters.
Some graphical sequences seem forced, however, and some flaws jump out once or twice.
Overall, the movie tries to point out some interesting theories, and just overall entertain the audience. You won't learn the meaning to life, but it's a good use of two hours of your time.