According to ESRB, this game contains: Violence
Parents should take note of the Teen rating, but if your kids saw the movie, then there's really nothing in the game to worry about. Of course, why you'd want to buy your kids a game this mediocre is another issue entirely.
Hack-and-slash fans will want to buy something else. The controls are weak and the combat is tedious (not to mention the camera issues and the lack of save points), making this one to pass over completely. Pick up something like Champions: Return to Arms instead.
Casual gamers may get a thrill out of seeing the movie adapted into videogame form (or for that extra chance to ogle Keira Knightley) but that will soon wear off once the tedium of the gameplay and the design flaws start showing up (which happens about five minutes into the first mission;conversely, players will have to wait a few hours to see that the low-polygon Keira Knightley model in the game isn't anything to get excited about).
Deaf and Hard of Hearing gamers will be happy to know that the game is fully subtitled (from the options menu). The nice thing about this is that it even subtitles the cinematic bits from the original film as well as everything related to the game itself.