The FBI is investigating the web leak of an unfinished copy of X-Men Origins: Wolverine, which isn't due in theaters until May 1. On Tuesday, the Hugh Jackman film was downloaded several 100,000 times from file sharing websites. 20th Century Fox issued a blunt warning: "The source of the initial leak and any subsequent postings will be prosecuted to the fullest extent of the law. The courts have handed down significant criminal sentences for such acts." Web reports have noted that green screens and wires attached to the actors were still visible in the pirated version. (Photo: WENN)