Oscar-winning director Oliver Stone’s big-screen dramatization of U.S. spy agency contractor Edward Snowden’s mass surveillance revelations will be released on Dec 25, distributor Open Road Films said.

‘Snowden’ will star Joseph Gordon-Levitt as the former National Security Agency contractor who leaked details of U.S. and British surveillance and electronic monitoring programs.

Filming has begun in Munich and will move to other locations before its expected completion in May. Open Road Films is a joint venture by Regal Entertainment Group and AMC Theatres, part of AMC Entertainment Holdings Inc. Shailene Woodley, Melissa Leo, Zachary Quinto and Tom Wilkinson will also star in the film adapted from books ‘The Snowden Files’ by Luke Harding and ‘Time of the Octopus’ by Anatoly Kucherena, Snowden’s lawyer.