I really don't get the fact that others are saying this has too much "sexual behavior". I'm pretty sure no one kissed (although I'm not positive) there wasn't really any flirting. AND ever one is saying the language isn't appropriate!? There are NO SWEARS whatsoever!!! Do you even allow your kids to say "dang it" or "what the heck" ??!!! By the way this is coming from a Mormon, and if a Mormon thinks the language is okay, then that almost guarantees that the language is okay. There was not very much drinking/smoking/etc, and it was all done by adult characters. As to the violence, yes it was violent at times, but it was nothing compared to what really goes on in the CIA or MI6/5. It also tames it down from the books (only slightly though).
Alright, as for my opinion of the movie, I loved it. My brother (10) also enjoyed it (he has not read the books btw). I have read the books and yes, it's not exactly the same as the books. But, can you name a movie that IS exactly the same as the books? My point. It followed the plot much better than the Percy Jackson movie did, partially because Anthony Horowitz himself adapted the screenplay. The only odd part was that they put Sabina in, yet she doesn't appear until the third book. But it worked fine, so I don't care... Great movie.