I Know This Much Is True poster
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I Know This Much Is True

7.620201 season15TV SeriesDrama

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.

ProducersMark Ruffalo·Derek Cianfrance

Where to watch

HBO Max Amazon ChannelHBO Max Amazon ChannelHBO MaxHBO Max
Availability shown for United Kingdom · rights vary by country

Seasons & Episodes

E1
Episode One
May 9, 2020 7.8
E2
Episode Two
May 16, 2020 7.2
E3
Episode Three
May 23, 2020 8.1
E4
Episode Four
May 30, 2020 8.3
E5
Episode Five
Jun 6, 2020 8.2
E6
Episode Six
Jun 13, 2020 8.6

Cast

MRMark Ruffalo
Mark Ruffalo
Dominick Birdsey / Thomas Birdsey
MLMelissa Leo
Melissa Leo
Concettina Ipolita Tempesta 'Ma' Birdsey
RORosie O'Donnell
Rosie O'Donnell
Lisa Sheffer
APArchie Panjabi
Archie Panjabi
Dr. Patel
KHKathryn Hahn
Kathryn Hahn
Dessa Constantine
JPJohn Procaccino
John Procaccino
Ray Birdsey
RHRob Huebel
Rob Huebel
Leo
MGMichael Greyeyes
Michael Greyeyes
Ralph Drinkwater
GFGabe Fazio
Gabe Fazio
Shawn Tudesco / Dominick and Thomas Acting Double

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I Know This Much Is True — streaming FAQ

Which OTT platform streams I Know This Much Is True?

I Know This Much Is True is streaming on HBO Max in United Kingdom, and available to rent or buy on Apple TV Store and Amazon Video. It's not currently on Netflix.

Is I Know This Much Is True on Netflix?

No, I Know This Much Is True is not on Netflix in United Kingdom as of September 2026. It's currently on HBO Max.

Is I Know This Much Is True on Amazon Prime Video?

I Know This Much Is True isn't included with a Prime Video subscription in United Kingdom, but you can rent or buy it on Amazon Video.

Where can I watch I Know This Much Is True for free?

I Know This Much Is True is available on HBO Max in United Kingdom, but you'll need an active subscription — there's no free option right now.

How many seasons are in I Know This Much Is True?

I Know This Much Is True has 1 season in total (6 episodes). The series concluded in 2020.

Are all episodes of I Know This Much Is True out yet?

Yes — all 6 episodes across 1 season of I Know This Much Is True are out and available to stream.

Is there a Season 2 of I Know This Much Is True?

No — I Know This Much Is True ended after 1 season, so there is no Season 2.