How 'Welcome to Chechnya' VFX Team Gave the Doc's Subjects a Digital On-Camera "Disguise" Courtesy of Cinetic Media; Igor Myakotin/Courtesy of Cinetic Media; Courtesy of HBO. Top: The face of a volunteer, captured against bluescreen, is used to hide the identity of one of the men in Chechnya. Bottom: Director David France tests the bluescreen process and David Isteev, an activist in the film. The first documentary to make the visual effects Oscar shortlist, David France's film, which goes undercover with activists working to save victims of anti-LGBTQ persecution, pastes in new faces to p...