Nick Vivarelli International CorrespondentVeteran Hollywood multi-hyphenate George Gallo (“Bad Boys,” “The Comeback Trail”) is attached to direct “Gambino,” a high-end biopic about organized crime boss Carlo Gambino that Gallo is co-writing with two-time Oscar winner Nick Vallelonga (“Green Book”).The ambitious project, announced in Cannes, is being lead produced by Julius R. Nasso, also a Hollywood veteran, best known for his production partnership with Steven Seagal that went sour.