"While We're Young" is a tale of two Brooklyns for Josh (Ben Stiller) and Cornelia (Naomie Watts) and Jamie (Adam Driver) and Darby (Amanda Seyfried). For Oscar-winning production designer Adam Stockhausen ("The Grand Budapest Hotel"), who just finished "Bridge of Spies" with Steven Spielberg, it was a return to home in New York after five years of working elsewhere.