Robert Mitchum in hat and raincoat in 1947 noir classic, Out Of The Past, effortlessly demonstrating the art of cool. In an endlessly rewatchable 80 second scene, he enters the club through the rear entrance, trots up the stairs, beats up the manager, answers the man's phone, grabs the file he's after, lights a cigarette, trots down the stairs, bluffs his way past the goons waiting for him, and out again.
Watch and learn.
