Local movie star, sometimes activist, and Tosca regular Sean Penn will play gay for pay in the long-incubated version of Randy Shilts' 1982 "The Mayor of Castro Street". (An amazing book for those of you who have yet to read it.) He'll play murdered San Francisco Supervisor and gay rights activist Harvey Milk, who was shot and killed along with Mayor George Moscone by Supervisor Dan White. Perma-boy Matt Damon gets to play the......