Your profile says Pickup on South Street, so probably that one.
I'd include Sam Fuller on a list of my favorite directors, even though I'm not a big fan of all of his films. But I'm a fan in the way that he directed actors. He gave them a ton of leeway when shooting scenes which got a better range of raw emotions and balanced nuances out of his leads. I like the way he shot action/fight scenes too, he believed in shooting wide as possible.