TV series
I Know This Much Is True
2020, English, on HBO. Created by Derek Cianfrance.
You don't just give up on the people you love.
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.
- Seasons
- 1
- Episodes
- 6
- Episode length
- 60 min
- Status
- Ended in 2020
Worth the Hype
Clear your evening for this.
7.7/10 from 302 TMDB viewer ratings.
Seen it? Give your verdict.
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Where to watch I Know This Much Is True
I Know This Much Is True is streaming on JioHotstar and VI movies and tv in India.
JioHotstar
VI movies and tvAvailability in India as of 1 November 2026. Streaming data by JustWatch.
Latest episode
S1 E6: Episode Six
Aired 13 June 2020
Seasons 1
Cast & crew
- Derek CianfranceCreator
- Mark RuffaloDominick Birdsey / Thomas Birdsey · 6 ep
- Melissa LeoConcettina Ipolita Tempesta 'Ma' Birdsey · 6 ep
- Rosie O'DonnellLisa Sheffer · 6 ep
- Archie PanjabiDr. Patel · 6 ep
- Kathryn HahnDessa Constantine · 6 ep
- John ProcaccinoRay Birdsey · 6 ep
- Rob HuebelLeo · 6 ep
- Michael GreyeyesRalph Drinkwater · 6 ep
- Gabe FazioShawn Tudesco / Dominick and Thomas Acting Double · 6 ep
- Rocco MasihiYoung Thomas Birdsey · 4 ep
- Donnie MasihiYoung Dominick Birdsey · 4 ep
- Laura EstermanRuth Hood · 3 ep
Details
- First aired
- 9 May 2020
- Last aired
- 13 June 2020
- Network
- HBO
- Language
- English
- Country
- United States
- Type
- Miniseries
- Rated
- TV-MA
Check ratings elsewhere
News & fan talk
What I Know This Much Is True is based on
I Know This Much Is True is based on I Know This Much Is True (1998) by Wally Lamb, published by HarperCollins.
1998
I Know This Much Is True
By Wally Lamb
Published by HarperCollins
Source details from Wikidata and TMDB.
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I Know This Much Is True: quick answers
Is I Know This Much Is True worth watching?
Our verdict is Worth the Hype: Clear your evening for this. It scores 7.7/10 from 302 TMDB viewer ratings.
How many seasons of I Know This Much Is True are there?
I Know This Much Is True has 1 season and 6 episodes, about 60 minutes each.
Is I Know This Much Is True finished?
Yes. I Know This Much Is True ended in 2020, so you can watch the whole story.
Which OTT platform is I Know This Much Is True on?
I Know This Much Is True is streaming on JioHotstar and VI movies and tv in India. (Checked 1 November 2026.)
I Know This Much Is True parents guide: is it suitable for kids?
I Know This Much Is True is rated TV-MA. Check the rating guidance before watching with young children.
What shows are like I Know This Much Is True?
If you liked I Know This Much Is True, try This Is Us, Monsters: The Lyle and Erik Menendez Story, Black Cake.
Who created I Know This Much Is True?
I Know This Much Is True was created by Derek Cianfrance and stars Mark Ruffalo, Melissa Leo, Rosie O'Donnell.
What is I Know This Much Is True based on?
I Know This Much Is True is based on I Know This Much Is True (1998) by Wally Lamb, published by HarperCollins.