Robert Pattinson better watch his back—Sam Worthington is in negotiations with Universal to star in a new blockbuster about vampires. The project will reportedly be directed by fellow Aussie Alex Proyas, who also helmed I, Robot. The film is called Dracula Year Zero and explores the origins of Dracula, weaving vampire mythology with the true history of Prince Vlad the Impaler. But there is also a “tragic love story” angle for the chicks in the audience. The movie would be scheduled for a US summer 2011 release.