(Reuters) – Former IMF chief Dominique Strauss-Kahn has instructed lawyers to sue the makers of a movie in which veteran French star Gerard Depardieu plays a sex addict who commits a sexual assault on a hotel maid, his lawyer said on Monday.     “Welcome to New York” by Abel Ferrara, which had a private screening on the sidelines of the Cannes film festival at the weekend and has been on pay-per-view in France, is billed […]