I happened to be in NYC when this was released. Read no reviews of it, but having recently seen Craig Wasson in Go Tell the Spartans (still the best fiction movie about Vietnam) and having admired Frank Grimes since I saw him as the lead in The Playboy of the Western World in Dublin years earlier, I decided to go. And was glad I did. This movie is a gem. Its disappearance after that initial showing in NYC (and probably other metro centers in the US) baffles me. Even more baffling is its non-resurrection in DVD. The Wasson character sort of made the film a sequel to Go Tell the Spartans. The story (which I won't spoil by telling the plot), about both IRA-ers and Brits using the American for their political ends was great, as were the acting and directing. Still vivid in my memory is the emotional ending with Wasson in a phone booth in Detroit. I keep searching for its release on DVD, with no luck.