“Black Mama, White Mama” has something for everyone. Everyone, that is, who walks directly to the “Action/Adventure” section upon entering their local video store. First, it starts out in a woman’s prison in some random South/Central American country. Second, the suggestions of lesbianism that this setting offers are set into hyper-warp by the chaining together of the two rivals for the lead, Pam Grier and Margaret Markov, while they wear nothing but skimpy prison tunics. They go on the run together while the film makes various unnecessary-yet-entertaining visits to all of those on their trail: Grier’s former pimp, government agents after Markov, and, last but not least, Sid Haig’s delightfully flamboyant “cowboy” character.