While We Were Shooting The Movie, We Shot In The Actual Hotel In Hong Kong Where It All Went Down, The Mira Hotel. Laura Poitras Was Coming To Hong Kong To Do A Screening Of Citizenfour, And She Ended Up Staying At The Mira Hotel. It Was Her First Time Back In Hong Kong, And I Ran Into Her In The Elevator. Literally I Had Just Finished Shooting One Day, And I Came Back To The Hotel And She Was In The Elevator.