If you believe the negative reviews,

Rating: 10/10 (14 February 2015)

This film was superb. Terrific acting, much more clever dialogue than I'd expected, a gripping storyline - and a true story, which makes it that much more impactful. Clint Eastwood and Bradley Cooper have made an amazing film. Even Sienna Miller was good. Fans of good film, whether or not they're fans of America's recent wars, will love this movie.
Now, as for the dozen or two negative (1-star) reviews I read. Anyone foolish enough to believe that those reviewers actually watched American Sniper deserve the bad advice those reviews offer. The negative reviews are in fact reviews not of the movie, but of American foreign policy; they're also negative reviews of those Americans who don't choose to live on the coasts. The hate and self-righteousness spewed from the reviews suggest authors with severe emotional problems. Is it credible that people who hate our military and people as much as these reviewers do would a) spend money on a ticket for American Sniper and b) sit through the movie? Not in the slightest.
Go see American Sniper if you have an open mind and like good movies.
If you're incurably anti-American, rent one of the many films that show our military in an unfavorable light - Rendition, Hurt Locker, anything by Robert Redford. Knock yourself out.