"Something's Gotta Give" is a cheerful romantic comedy about the rejuvenating power of love and how old dogs can indeed learn new tricks. Writer-director Nancy Meyers smoothly blends several comedy styles -- the delicious oddball situation of Kaufman and Hart and the psychobabble of Woody Allen with a considerable helping of the frothy style Meyers herself has developed over the years with her former screenwriting partner Charles Shyer -- into a kind of updated and saucier version of a Rock Hudson-Doris Day comedy. Only the characters are determinedly middle-age as Meyers has crafted chewy parts that allow Jack Nicholson and Diane Keaton to perform riffs on their own personalities and past roles.

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