I Know This Much Is True
Created by Derek Cianfrance
The parallel lives of identical twin brothers Dominick and Thomas Birdsey in an epic story of betrayal, sacrifice and forgiveness set against the backdrop of 20th century America.
Watch trailerWhere to watch in 🇺🇸 United States
Top cast
Mark Ruffalo
Dominick Birdsey / Thomas Birdsey
Melissa Leo
Concettina Ipolita Tempesta 'Ma' Birdsey
Rosie O'Donnell
Lisa Sheffer
Archie Panjabi
Dr. Patel
Kathryn Hahn
Dessa Constantine
John Procaccino
Ray Birdsey
Rob Huebel
Leo
Michael Greyeyes
Ralph Drinkwater
Gabe Fazio
Shawn Tudesco / Dominick and Thomas Acting Double
Frequently asked questions
Where can I watch I Know This Much Is True online?
As of August 5, 2026, I Know This Much Is True is available to stream on HBO Max Amazon Channel, YouTube TV, and HBO Max in United States. Use the country selector above to check availability in other regions — streaming rights are licensed per country, so catalogues differ.
Is I Know This Much Is True on Netflix?
No — I Know This Much Is True is not currently on Netflix in any of the countries we track. In United States it streams on HBO Max Amazon Channel, YouTube TV, and HBO Max instead.
Can I rent or buy I Know This Much Is True online?
Yes. In United States, I Know This Much Is True is available for digital purchase on Amazon Video, Apple TV Store, Google Play Movies, and Fandango At Home.
In which countries can I stream I Know This Much Is True?
As of August 5, 2026, I Know This Much Is True is included with a streaming subscription (or free with ads) in Argentina, Brazil, Canada, Chile, Colombia, Germany, Italy, Mexico, Russia, Spain, United Kingdom, and United States, among the countries we track.
Streaming availability last checked on August 5, 2026. Catalogues change frequently — data from TMDB and JustWatch.
