I would like to see it ... but only you can decide for your kids ....
https://www.commonsensemedia.org/movie-reviews/american-s...
"Parents need to know that American Sniper is a Clint Eastwood-directed biopic of Chris Kyle (Bradley Cooper), a Navy SEAL sniper with the most confirmed kills on record. It's very intense and violent, with shootings, blood, mangled bodies, kids in danger, violence against children, explosions, and lots of general stress and tension. Language is likewise extremely strong, with frequent uses of "f--k," "s--t," and more. Two adults have a sexual relationship and are intimate. They think about sex, and the woman is pregnant during the story, though nothing sensitive is shown. There's heavy drinking during an early scene set in a bar, to the point of vomiting. Parents will vary in their opinion of Kyle's heroism; he may be too violent for some, but his patriotism and service -- plus his assistance of veterans with PTSD -- may sway others. The movie also has a complex and subtle message about the war in Iraq; it's possible to see both sides of the argument."