Viggo Mortensen attends the "Captain Fantastic" premiere in Los Angeles

Cast member Viggo Mortensen signs autographs as he arrives for premiere of the motion picture drama "Captain Fantastic" at the Harmony Gold Theatre in the Hollywood section of Los Angeles on June 26, 2016. Storyline: In the forests of the Pacific Northwest, a father devoted to raising his six kids with a rigorous physical and intellectual education is forced to leave his paradise and enter the world, challenging his idea of what it means to be a parent. Photo by Jim Ruymen/UPI