At one point during a street chase, Jimmy (Liam Neeson), runs past a billboard for Mad Max: Fury Road (2015). That film was also produced by the same studio (Warner Bros.), was scored by the same composer (Junkie XL) and the trailer for the film was attached to all release copies of "Run All Night".
The car that Jimmy Conlon (Liam Neeson) drives is the same type of car that Patrick Swayze's character Truman Gates drives in the movie Next of Kin (1989) It was also a movie that Neeson starred in, playing as Swayze's brother.
At one point the announcer says 'kick save by Lundqvist', the Ranger goalie, when the puck is in the Devil's end. Later, it says 'empty net' above a score of 3-2 Rangers, when the Devil's goalie in the net; the leading team doesn't pull its goalie. Finally, when the fans are leaving the arena, the time is 3:37, after a game that ended in regulation. A normal time for the end of such a game would be 00:00.
During the bar scene, Liam Neeson mentions having a drink with Mickey Featherstone. In real life, Mickey Featherstone was a member of the New York Irish-American gang called The Westies, based out of Hell's Kitchen.
The trivia items below may give away important plot points.
Mike tells Eddie that Roy DeMeo's boys killed Billy. Roy DeMeo was a real hitman for the Gambino family, in charge of his own crew. Ironically Roy DeMeo was murdered by his own crew at mob boss Paul Castellano's orders.