A special screening of a documentary delving into the difficulties experienced by returning war veterans suffering post traumatic stress disorder is set for 7 p.m. tonight at the Seneca Niagara Casino’s events center in Niagara Falls.

Proceeds from the screening of “Halfway Home” will be donated to the U.S. Department of Veterans Affairs’ PTSD residential treatment program and the Seneca Nation Veterans Iroquois Post. Tickets are $20.

The film is narrated by actor Martin Sheen. The main character is Army Staff Sgt. Tommy Rieman, a recipient of the Silver Star and Purple Heart who recently visited Western New York to promote the screening.

During his visit, Rieman became friends with another soldier from another war who was also promoting the documentary – Stephen T. Banko III, a highly decorated soldier from the Vietnam War.

When the two men shared notes, it turned out they shared a special date, though 35 years apart. Banko was wounded Dec. 3, 1968, and Rieman on Dec. 3, 2003.

Rieman, on a reconnaissance mission near the Abu Ghraib prison, came under heavy attack before his three-vehicle convoy reached its destination. He used his body as a shield to protect his gunner and suffered two bullet wounds and 11 shrapnel wounds.

Following the documentary, there will be a question-and-answer session with Rieman and other cast members.