I am a fan of film noir fan. If I had to pick only one, then, it would be the 1946 classic "The Killers" starring Burt Lancaster and Ava Gardner. I really, really, really wish Quentin Tarantino would do a remake of that film!
I'd like to watch Blood Vows (Portrait of a Mafia Wife), even if it had me crying and feeling depressed for 2 weeks in high school. It was a made for TV movie and I can't find any copy now. It starred Melissa Gilbert and Joe Penny