The extraordinary choreography of the single take conveys the madness of Michael Keaton's Riggan Thomson and the collapse of his life. This new "Birdman" featurette helps demonstrate why director Alejandro Gonzalez Iñárritu, Keaton and cinematographer Emmanuel "Chivo" Lubezki are all Oscar frontrunners.
"'Birdman' was unknown territory," admitted Lubezki. "It's exciting and it gives you energy all day because you have to be incredibly concentrated. And it's incredible energy for the actors because they know the scene you're shooting is the scene and there is no coverage.
"There was something that we did that nobody has mentioned: the labyrinth of corridors shrink and shrink as the movie progresses and Riggan's level of stress and insanity grow. We narrow the width of the corridors and the ceilings come closer. We didn't want to do it in a way that looked too strange but it's something that you feel."