I Know This Much Is True (miniseries)

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I Know This Much Is True
Based onI Know This Much Is True by Wally Lamb
Written byDerek Cianfrance
Directed byDerek Cianfrance
Country of originUnited States
Original language(s)English
Executive producer(s)
  • Derek Cianfrance
  • Mark Ruffalo
  • Wally Lamb
  • Ben Browning
  • Glen Basner
  • Gregg Fienberg
  • Anya Epstein
  • Lynette Howell Taylor
Production company(s)FilmNation Entertainment
Original networkHBO

I Know This Much Is True is an upcoming TV series based on the novel of the same name. It was ordered to series in October, 2018 and stars Mark Ruffalo in the double-role of identical twin brothers Dominick and Thomas Birdsey.[1][2]



Principal photography began in March 2019.[3] In April 2019, Melissa Leo, Rosie O'Donnell, Archie Panjabi, Imogen Poots, Juliette Lewis and Kathryn Hahn joined the cast of the series.[4]

On May 9, 2019 a fire erupted on the set of the series at a used car dealership in Ellenville, NY. The building, film equipment and several vintage cars were destroyed. There were no injuries but it put filming on hold.[5]


  1. ^ Petski, Nellie Andreeva,Denise; Petski, Nellie Andreeva, Denise (18 October 2018). "Mark Ruffalo Limited Series 'I Know This Much Is True' Gets HBO Green Light".
  2. ^ Andreeva, Nellie; Andreeva, Nellie (18 October 2017). "Mark Ruffalo To Star In HBO Limited Drama Series In Works From Derek Cianfrance Based On Wally Lamb Book".
  3. ^ Howland, Jack (March 21, 2019). "Charlie Kaufman movie for Netflix filming in Fishkill, Hudson Valley". Poughkeepsie Journal. Retrieved April 3, 2019.
  4. ^ Petski, Denise (April 3, 2019). "Melissa Leo, Rosie O'Donnell, Archie Panjabi, Imogen Poots, Juliette Lewis, Kathryn Hahn To Star In 'I Know This Much Is True' HBO Limited Series". Deadline Hollywood. Retrieved April 3, 2019.
  5. ^ https://www.poughkeepsiejournal.com/story/news/2019/05/09/hbo-mark-ruffalo-production-shut-down-wake-ellenville-fire/1158402001/

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