Mismatch in Every Possible Way In "I Give It a Year," a smutty script and a passel of objectionable characters form an imperfect rom-com union - one that will, with any luck, fade from the mind long before its title suggests. Attempting to replicate the success, if not the warmth, of Britcoms like "Love, Actually" and "Notting Hill" - at one point, a character excitedly pronounces a particular scene as being "just like a Hugh Grant film" - this painfully awkward product fails on almost every level. Pairing a script by Dan Mazer, a writer on "Borat" and "Brüno," with a genre more reliant on the warm and fuzzies than the cold and creepies proves disastrous (and explains the smut). And though Mr. Mazer, directing his first feature, laudably tries to upend a few made-for-each-other clichés, he constantly misjudges the balance between sharp edges and soft centers. His lovers don't coo, they snipe. And how. Skidding from nuptials to nastiness in a matter of months, Nat (Rose Byrne) and Josh (Rafe Spall) could not be more mismatched. She's a put-together advertising type; he's a slovenly writer given to inane jokes and tongue-tied gurgles in the presence of attractive women. Her parents play genteel games of charades; his are unable to go five minutes without groping each other. This inappropriateness is the film's crass fuel, supplied most reliably by Stephen Merchant as Josh's foul-mouthed best mate. And though Olivia Colman is wonderful as a bitter, batty counselor, and Minnie Driver's tart tongue deserves a movie of its own, not even they can salvage this miscalculated marriage of cynicism and sentiment. "I Give It a Year" is rated R (Under 17 requires accompanying parent or adult guardian). A terrible threesome, a flaccid full-frontal and embarrassingly indelicate in-laws.