Tom Hardy stars in dual roles as Ronald and Reginald Kray in the teaser trailer for "Legend," the thriller about real-life twins who ruled the London crime scene during the 1960s.

Written and directed by Brian Helgeland ("L.A. Confidential," "Mystic River"), the adaptation of John Pearson's 1995 book "The Profession of Violence" traces the rise and fall of the infamous Kray twins, who as West End nightclub owners rubbed elbows with celebrities and politicians even as their gang was involved in armed robberies, protection rackets and murders.

Opening Sept. 11 in the United Kingdom, "Legend" also stars Emily Browning, David Thewlis, Christopher Eccleston, Taron Egerton, Tara Fitzgerald and Chazz Palminteri.