Sigourney Weaver will be a knife-happy surgeonWalter Hill is tackling transgender themes in his next film, albeit in the guise of an action thriller. Michelle Rodriguez and Sigourney Weaver are on board to star in Tomboy, A Revenger’s Tale. Hill has written the script based on a story by Denis Hamill, which sees a top assassin double-crossed by gangsters and handed over to a rogue surgeon (Weaver) who turns him into a woman.