Four years ago, director Paweł Pawlikowski won the best foreign language Oscar for his film 'Ida.' His new movie is 'Cold War,' a black-and-white period film based on the tumultuous marriage of his Polish parents that has him in the awards race again. He tells us about making 'Cold War,' getting encouragement from his friend Alfonso Cuaron, and gives the backstory of that memorable Oscar speech from 2015.