The Equalizer - Featurette and Clip

Director Antoine Fuqua (Training Day, Olympus Has Fallen) talks about what makes The Equalizer (Denzel Washington) different from other action movie heroes. The name comes from how he spends his days as a "regular Joe", but uses hand-to-hand combat in order to fight his way through legions of bad guys "levelling the playing field". Producer Todd Black (A Knight's Tale, The Pursuit of Happiness) goes on to explain The Equalizer's skill set. He uses impeccable awareness of his surroundings to manipulate his environment into a weapon - this leads to stunt coordinator Keith Woulard discussing Washington's desire to make the fight scenes "dirty and gritty, but he want[ed] it smart". 

Robert McCall (Denzel Washington), also known as The Equalizer, is confronted at his apartment by a police officer supposedly looking into a shooting at a Russian restaurant two weeks prior. McCall acknowledges that he was at the restaurant that night, by he also reveals that the officer already knows that - leading to his visit. After a brief talk, the officer states he'll "be in touch", whereupon McCall asks "Don't you wanna leave me your card, Officer? In case I remember anything. That's what you policemen usually do, right?" When the officer is unable to do just that, McCall is left wondering who he really was, and who he was really working for.