First 'American Sniper' Trailer: Bradley Cooper Makes a Deadly Decision

Clint Eastwood directs the Warner Bros. project

The first trailer for Clint Eastwood's American Sniper has been released, and it's a tension-filled first look of the Navy SEAL drama.

Bradley Cooper stars as Chris Kyle, who had the record highest number of sniper kills for an American. The film is based on Kyle's book, American Sniper: The Autobiography of the Most Lethal Sniper in U.S. Military History. Kyle, who served four tours in the Iraq War, was killed at a shooting range in February 2013.

The Warner Bros. and Village Roadshow movie is a passion project for Cooper, who is producing with Andrew Lazar and Lazar's company, Mad Chance Productions. Sienna Miller also stars.

The film will be released during the heart of awards season, hitting select theaters on Christmas Day before expanding nationwide Jan. 16.

Watch the first trailer above.