Superhero action prequel to the first three 'X-Men' movies. The film charts the beginning of the saga, following Professor X (James McAvoy) and Magneto (Michael Fassbender) through their formative years in the 1960s as they come to terms with their newfound superpowers. Initially close friends who work together to fight against evil, the two men are driven apart by a conflict of opinion that ultimately leads to the eternal war between Magneto's Brotherhood and Professor X's X-Men. Kevin Bacon, January Jones and Rose Byrne co-star.