Movies Dealing With Trauma

When we think of PTSD (Post-Traumatic Stress Disorder), the first word that generally comes to mind is WAR. But not all the memorable cinematic cases of PTSD were related to some hellish memory of a best friend being blown to pieces in Danang or Okinawa... many critically acclaimed movies dealt with non-veteran or military characters suffering from traumas (though some were war-related).

So, whether from the intensity and brilliance of the acting or the realism and poignancy of the writing, or both, which of these movies best tackled the difficult subject of PTSD?

After voting, you may discuss the list here