“Babylon,” but this is far from a sanitized take on 1920s Tinseltown.Paramount Pictures has unveiled some first-look images from “Babylon” that showcase Chazelle’s impressive ensemble, including Brad Pitt as an established movie star and Margot Robbie as an ingénue on the rise.Described as a tale of outsized ambition and outrageous excess, the story traces the rise and fall of multiple characters during an era of unbridled decadence and depravity in early Hollywood. This is a fully R-rated take on a turning point in the history of Hollywood, when silent films gave way to talkies and movie stardom exploded.Jovan Adepo, Li Jun Li and Jean Smart also star in the film, which Chazelle wrote.