Jon Turteltaub is in negotiations to direct “Last Vegas” for CBS Films and Mandate Pictures.Dan Fogelman penned the story of four best friends in their late 60s who decide to escape retirement and throw a Las Vegas bachelor party for the only one of them who remains single. Laurence Mark will produce through Laurence Mark Prods. Nathan Kahane will exec produce. No production start date has been set yet. Turteltaub most recently directed Disney’s “The Sorcerer’s Apprentice.” He is repped by WME and Oasis Media Group.