Reservation Road (2007)

The lives of two men and their families intersect after a devastating accident. Ethan Lerner is driving home with his family following their son's cello recital, while law associate Dwight Arno is returning from a ballgame with his son. In an instant, tragedy strikes when Ethan's son is killed under the wheels of Dwight's car. In a panic, Dwight flees the scene, leaving Ethan, the sole witness to the horrific event, to seek justice.