Maybe it's because 2 Guns seems to be, and proves to be, a film that sets the bulk of its attention on forwarding the criminal plotline. In this area, 2 Guns offers little in the new. Yes, the dramatic irony that both Washington and Wahlberg are officers of the law, and each under the impression that the other is a bona fide crook, is a twist with some flavor. But too heavily stocked with your standard cop movie tropes — inhabited by drug cartel baddie Edward James Olmos and sociopathic CIA man Bill Paxton — the film crumbles under its decision to take its story too seriously.
When it has fun, though, it has a good deal of it.
The high points of the film are not when Washington and Wahlberg are facing off with their laundry list of enemies — criminals, fellow lawmen, former allies, you name it... nobody likes these guys — but when the mismatched pair tustle verbally with one another.
Washington's Bobby Trench is a smooth, serious, acerbic would-be loner; Wahlberg's blathering Michael Stigman operates at peak energy and volume, wearing his lust for attention and friendship on his sleeve as he works tirelessly to win over his target/partner. Their chemistry, while nothing unprecedented in the buddy cop genre, is endearing, helping to pass the hour-and-a-half occupied by 2 Guns with just enough chuckles.
So if you're already there, having wandered accidentally into the wrong theater or affixed against your will to a diehard Denzel fan's idea of a perfect night out, buck up — the comedic scenes will get you through it.