In X-Men mutants are opposed by mutants in a fight over how to treat the non-mutant humans who fear and hate them.
This film stars Patrick Stewart (Professor X), Ian McKellen (Magneto), Hugh Jackman (Wolverine), Famke Janssen (Jean Grey), James Marsden (Cyclops), Halle Berry (Storm), Anna Paquin (Rogue), Tyler Man (Sabretooth), Ray Park (Toad), Rebecca Romijn-Stamos (Mystique), Bruce Davison (Senator Kelly). And it still doesn't have enough characters, nor does it develop the ones it has already very well.
The movie sticks well to the comic book it came from - at least in spirit. The powers attributed to the mutants survived the movie making process.
What was good about the movie? Substance. There was depth to the story. Its opening scene is of Nazis in Poland forcing Jews into lines and cages. It tells a tale of what humanity is capable of - both good and evil. The movie concentrates mainly on Wolverine and Rogue. They are new to the X-Men and must deal with the difficulties of being involved in a struggle that has no less than humanity hanging in the balance.
What is bad about the movie? The dialogue is horrible. Admittedly there are a few touching moments between Wolverine and Rogue, but besides that it sucks - especially Storm's lines. Toad only has a few lines, that's disappointing, since it the first time I've heard Ray Park (Darth Maul in Star Wars: The Phantom Menace) speak. The special effect were nothing worth speaking of and the costumes were more corny than in the comic books. But what is the worst thing about the movie? James Marsden. Cyclops character is weany enough without the weaniest of weany weiners playing him. Alright so he's not my favorite X-man, but I don't hate so much that I want Marsden playing him (better than Leonardo Decaprio I suppose, but not much).
The fighting is restrained and besides minor violence and one scene where the a senator turns into water (this is the movie's special effects at its best) there isn't much content to be worried about. The is one interesting thing to note, Mystique's body suit is so tight that she is (shapewise) almost naked, but the film is edited, so that the curves aren't shown.
Overall it is enjoyable to watch, even if you've never read the comic book. It almost suffers from the dark movie problem that Batman did, but turns out to be the best comic book to movie adaptation I've ever seen.