Based on a graphic novel that most people probably never heard of, 2 Guns stars Denzel Washington and Marky Mark as a pair of wisecracking robbers who knock over a bank and as they head into the desert to split the take, discover that each is actually a lawman seeking to take the other down - Denzel a DEA agent and Mark with Naval Intelligence. Mark wounds Denzel and leaves him in the desert, but as things proceed the nagging fact that there was $43 million in the vault when they expected only $3 million means that the owners of that money are going to be hunting for them, too. (One guess as to who the 3rd party is.)
While it starts off like a breezy lark, 2 Guns can't decide on a tone - gritty crime or comic romp - and quickly just got noisy and dull. The hoot is that Marky Mark is supposed to be Naval Intelligence but doesn't show much of the latter. The "twist" as to who the third party involved was predictable and once you realize everyone is double-crossing everyone it's easy to spot the backstabs coming a mile away.
Score: 3/10. Skip it.