Twice Upon A Time (French: Il était une seconde fois) is a four-part French sci-fi drama miniseries first broadcast in 2019, directed by Guillaume Nicloux, starring Gaspard Ulliel and Freya Mavor. The miniseries was broadcast in France via the network Arte on 29 August 2019. It was released in the United States on Netflix on 19 December 2019. Twice Upon A Time was the second collaboration between director Guillaume Nicloux and actor Gaspard Ulliel, the first was the 2018 war film To the Ends of the World.