Alejandro Gonzalez Iñárritu and his cinematographer Emmanuel "Chivo" Lubezki (who also collaborates with Terrence Malick and Alfonso Cuaron) had practice creating extended long shots on "Birdman," but this frontier actioner marks another order of magnitude in terms of epic scale and budget ($135 million). Shot on harsh wintry locations in Alberta and Tierra del Fuego, the virtually all-exterior revenge adventure could have completely fallen apart without a very specific road map based on extensive rehearsals and intricately executed camera moves in an hour-and-a-half of natural light per day. This was tough on the actors, who had to find their characters while moving in perfect sync with Lubezki's pre-choreographed new Alexa cameras.