The casting of Bullock and McCarthy—who easily play traditionally masculine types, strong-willed and forthright—makes The Heat more than a gimmicky retread of a well-worn genre. They're a female version of Laurel and Hardy or Abbott and Costello: Bullock as the straight man, McCarthy as the baggy-pants comic, both getting into a series of fine messes. These roles are well established in the world of comedy, but it took McCarthy's arrival on the scene for the pairing to be played to the hilt.