Taken is an interesting and exciting film, but is also very violent and leaves a mixed message.
First of all, this film is nightmare material for parents worried about their kids being snatched, and even more so for kids. It's quite disturbing at times, and as such isn't for squeamish viewers.
This film is also exceptionally violent for a PG-13, with a body count in the dozens and many scenes of fighting, shooting, and killing. The most graphic content takes place offscreen, but there is one scene of torture that's rather disturbing, and the film is very intense even though it's not explicit. The film sends a mixed message. A father is willing to risk everything he has to save his daughter from criminals, but takes dozens of lives in the process. There is also moderate profanity, a few drug references, and a theme involving a prostitution ring. All in all, this isn't a film for tweens or younger kids, but most teens will be fine with it, assuming they're not easily frightened.