Let There Be Light (1946), a film about psychological casualties of war
Here's something for Memorial Day, a film by John Huston about the psychological casualties of WW II. About 20% of WW II casualties were what is now known as PTSD. The film was suppressed from when it was made in 1946 until 1980, when the copies available were so bad that they were pretty much unwatchable. The National Film Preservation Foundation has now restored it.