Ten Casting Decisions That Inspired Ridley Scott's 'Exodus: Gods And Kings'

John Wayne as Genghis Kahn in The Conqueror

Rooney Mara as Tiger Lily in Pan

Burt Lancaster as Massai in Apache

Max Minghella as Divya Narendra in The Social Network

Laurence Olivier as Othello in Othello

Elizabeth Taylor as Cleopatra in Cleopatra

Everyone in The Last Airbender

William Mapother (left) as Sgt. Jason Thomas in World Trade Center

Jake Gyllenhaal as Dastan and Gemma Arterton as Tamina in The Prince of Persia

Victor Mature as Crazy Horse in Chief Crazy Horse