Warner Bros. and Brett Ratner’s RatPac Entertainment are developing a movie based on Ben Mezrich’s upcoming book “Once Upon a Time in Russia: The Rise of the Oligarchs — A True Story of Ambition, Wealth, Betrayal, and Murder.”

It’s the first Mezrich project set up at Warner Bros., which has a first-look deal with RatPac. Mezrich’s books “The Accidental Billionaires” and “Bringing Down the House” were the basis for the Sony movies “The Social Network” and “21”; Mezrich’s “Seven Wonders” is set at Fox.

“Once Upon a Time in Russia,” to be published June 2 by Atria Books, centers on Russian billionaires Boris Berezovsky and Roman Abramovich. Berezovsky made his fortune during the privatization of government property during the 1990s, teaming with his protege Abramovich in a variety of hugely profitable investments.

Ratner provided the origins of the idea for the book and pitched it to Mezrich. Ratner will produce “Once Upon a Time in Russia” with James Packer and John Cheng executive producing. Chantal Nong and Julia Spiro are overseeing for Warner Bros.

The news was first reported by The Hollywood Reporter.