‘Downton Abbey’ and ‘The Gilded Age’ creator Julian Fellowes chats with ET’s Nischelle Turner about a possible crossover between the two. The producer also shares how ‘Downton Abbey: The Grand Finale’ pays homage to the late Maggie Smith and shares his favorite memory of working with the actress through the years. ‘Downton Abbey: The Grand Finale’ in is theaters on Sept. 12.
