There is a point, about a third of the way through American Sniper's conventional narrative, where a different kind of war movie threatens to break out. SEAL sniper Chris Kyle is dropping Iraqi bodies left and right. He is protecting colleagues, but opening a wound on himself. It is not a glorious sacrifice. He seems to wonder how many more he will have to kill.

Much of the recent media debate around American Sniper concerns the legacy of Chris Kyle, the SEAL in the title, who may be a hero, a cold-blooded killer, a loudmouthed liar, or all three. In fact, Kyle—the real man and the dramatic character—seems to be the latest in a long history of men I call military braggadouches.