In The Valley Of Elah (2007)

"Your son is missing." It’s the phone call every soldier’s father dreads. What Hank Deerfield (Tommy Lee Jones) had never thought to fear was that this call would come when his son was home in the U.S., on leave from service in Baghdad. Facing military indifference to the disappearance, Hank decides to take matters into his own hands and discover the truth about what’s happened to his son. With the reluctant help of police detective Emily Sanders (Charlize Theron), Hank embarks on a journey that will bring him up against the closed ranks of the armed forces and the harsh realities of modern warfare.