The original title was intended to be "A Couple Of Dicks" but when the studio changed it to "A Couple Of Cops" director Kevin Smith said it was a cop out, which ironically became the new title of the movie.
It's entertaining enough as a homage to 1980's buddy-cop flicks without being particularly funny, partnering Bruce Willis and Tracy Morgan as two incompetent officers who are put on unpaid suspension after screwing up a drug bust.
With Willis' daughter's expensive wedding on the horizon and needing the cash to pay for it, he decides to sell a valuable baseball card, which gets stolen and winds up in the possession of the drug honcho who they're trying to bring down at the start of the movie.
The film is packed with references to other action & crime films but the jokes are more miss than hit, and all the scenes featuring Seann William Scott are particularly unfunny.
It's sad to say that without Jay & Silent Bob, Kevin Smith's films simply aren't very good.