Oliver Stone to make Snowden biopic

Oliver Stone (left) set to adapt and direct "The Snowden Files" based on Edward Snowden's (right) life.

4 Jun – Director Oliver Stone will be tackling another hard subject about his home country when he works on his next feature.

According to The Guardian, Stone will be directing an adaptation of "The Snowden Files", a non-fictional book on controversial whistleblower Edward Snowden, who leaked classified National Security Agency (NSA) documents to the public in 2013.

Stone is also expected to write the adaptation that will be co-produced as a European venture between The Guardian and Stone's producer partner Mortiz Borman.

"This is one of the greatest stories of our time...A real challenge. I'm glad to have the Guardian working with us," said the Oscar-winning director for "Born on the Fourth July", who also confronted controversial subjects in his films like "Platoon", "W." and "JFK".

Possible actors to play Snowden on screen? (L-R) Daniel Radcliffe, Robert Pattinson and Aaron Paul.

Filming is planned to begin by the end of 2014 with no expected release date announced.

"The Snowden Files" is written by The Guardian journalist Luke Harding based on the accounts of Snowden's leakage to a former journalist of The Guardian, Glenn Greenwald. Snowden is currently believed to be in Russia, when the United States government had cancelled his passport while Snowden was seeking for an asylum.

Stone's project is not the only picture in the works on Snowden, as there is an ongoing effort to adapt "No Place to Hide", a book written by Greenwald on Snowden.