Other mistake: When James Gandolfini hits Ben Affleck over the head with the shovel, for burning something in his front yard, he falls, but his head never hits the ground. You can actually see Ben Affleck holding his head up a few inches off the ground. An impossible feat for someone who is supposed to be unconscious.
Visible crew/equipment: During the opening scene, when the camera shot is on a moving train, the camera and cameraman are reflected in the train windows. (00:00:35)
Deli Man: How's the holidays?
Tom Valco: Considering I got a pain in my ass about six feet tall in my house, all right.