Continuity mistake: After the press conference, in the first shot of Jackson and Johnson walking into the office, Johnson has his gun in the shoulder holster at his left, but when Jackson tells everyone that most are on the list Johnson's shoulder holster is empty. Cut back a few seconds later and his weapon is back. (00:04:00 - 00:04:30)
Factual error: When they show the front of the New York Post with the headline "Viva Las Vegas", the date of the newspaper says Friday September 14, 2010 September 14, 2010 was a Tuesday.
Other mistake: When Hoitz is yelling in the art museum, a set of wrench sockets is visible behind him. Scene cuts to his ex's boss; upon cutting back merely a second or two later, the socket set has been overturned and spilled everywhere but nobody at the museum seems to notice.