Point Blank (1967). Gareth Cheshire told me to watch this after I raved about Steven Soderbergh’s The Limey on FB. Really good revenge pulp-movie. You can certainly see how it influenced Soderbergh, not sure if he actually ripped it off like Gareth told me.
I don’t think I’ve seen many Lee Marvin-movies. I can only remember one for sure besides this, Emperor of the North, and that was on TV when I was 10 or something.