I've never seen that movie but am I right in thinking that between the title and the job of the actor that the star of the movie is a person with a very unstable mentality?
Frank
If you get a chance to see the Movie "The War Lover" Yeah he has a very unstable personality. Best line in the movie (not in the clips)
When asked if enjoys England. Mcqueens Response "I enjoy my work" "Your'e work?" Asked back
"Lady I am part of the most destructive force the world has ever known. That's my work."

I don't think anyone could've played that role better than Steve McQueen. The Maverick of WW2 movies!