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I Know This Much Is True

2020 · Drama · 1 season · ★ 7.7

EndedHBO+18
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Synopsis of I Know This Much Is True

Dominick and Thomas Birdsey are identical twins living in Three Rivers, Connecticut, in the early 1990s. Thomas suffers from paranoid schizophrenia. With medication, he manages to lead a relatively calm life and works at a coffee shop, but from time to time he has severe episodes of his illness. Dominick, his twin brother, has a complicated relationship with him. The miniseries, created by Derek Cianfrance, stars Mark Ruffalo as both brothers and airs on HBO. The story begins with Thomas's fragile balance and the tension between the two brothers, which is not always easy to sustain.

«You don't just give up on the people you love.»

1season
6episodes
60 minper episode
7.7audience scoreTMDB · 299 votes
8.1IMDb rating28,310 votes

Seasons of I Know This Much Is True

Season 1Season 12020 · 6 ep. · ★ 8.1

Cast by I Know This Much Is True

Mark RuffaloMark RuffaloDominick Birdsey / Thomas Birdsey6 episodes
Melissa LeoMelissa LeoConcettina Ipolita Tempesta 'Ma' Birdsey6 episodes
Rosie O'DonnellRosie O'DonnellLisa Sheffer6 episodes
Archie PanjabiArchie PanjabiDr. Patel6 episodes
Kathryn HahnKathryn HahnDessa Constantine6 episodes
John ProcaccinoJohn ProcaccinoRay Birdsey6 episodes
Rob HuebelRob HuebelLeo6 episodes
Michael GreyeyesMichael GreyeyesRalph Drinkwater6 episodes
Gabe FazioGabe FazioShawn Tudesco / Dominick and Thomas Acting Double6 episodes
Rocco MasihiRocco MasihiYoung Thomas Birdsey4 episodes
Donnie MasihiDonnie MasihiYoung Dominick Birdsey4 episodes
Laura EstermanLaura EstermanRuth Hood3 episodes
Imogen PootsImogen PootsJoy Hanks3 episodes
Bruce GreenwoodBruce GreenwoodDr. Hume2 episodes
Marcello FonteMarcello FonteDomenico Onofrio Tempesta2 episodes
Annie FitzgeraldMiss Hanker2 episodes
Joseph RagnoJoseph RagnoHenrey Rood2 episodes
Acahkos JohnsonPenny Ann Drinkwater2 episodes
Jaiden KleinJaiden KleinMarie Sexton2 episodes
Charlie ReinaCharlie ReinaChanny2 episodes
Violet AdamsBunny Borsa2 episodes
Oliver PatnodeOtero2 episodes
Matt HelmMatt HelmYoung Leo2 episodes
Derek GohDerek Goh17-19 Year Old Dominick & Thomas Acting Double2 episodes
Agatha NowickiAgatha NowickiAngie Constantine2 episodes
Irene MuscaraIrene MuscaraProsperina Tucci2 episodes
Adrienne R. WilliamsMrs. Birdsall2 episodes
Tatanka MeansTatanka MeansNabby Drinkwater2 episodes
Philip EttingerPhilip EttingerEarly Adulthood Dominick Birdsey / Thomas Birdsey2 episodes
Aisling FranciosiAisling FranciosiYoung Dessa Constantine2 episodes
Juliette LewisJuliette LewisNedra Frank2 episodes
Harris YulinHarris YulinFather LavieEpisode 1
Sue Jean KimSue Jean KimDr. YupEpisode 1
Michael Simon HallMichael Simon HallStuart FeinsteinEpisode 1
Gina CostiganGina CostiganMrs. O'MearaEpisode 1
Steven CoxSteven CoxBoyfriend of Dr. Hume's DaughterEpisode 1
MorningStar AngelineMorningStar AngelineNabby Drinkwater's WifeEpisode 1
Al LineaAl LineaAbruzziEpisode 1
Richard FitchMill ForemanEpisode 1
Amy Lynn StewartAmy Lynn StewartMerciful MotherEpisode 1

Technical Details

Created by
Derek Cianfrance
Address
Derek Cianfrance
Writing
Derek Cianfrance, Anya Epstein
Music
Harold Budd
Photography
Jody Lee Lipes
Original novel
Wally Lamb
Production
Jeffrey T. Bernstein
Executive Producer
Glen Basner, Ben Browning, Wally Lamb, Mark Ruffalo
Production companies
FilmNation Entertainment, Hunting Lane Films, Willi Hill
Network or Platform
HBO
Country
United States
Original Language
English
Premiere
May 9, 2020
Last Episode
June 13, 2020 (1x06)
Status
Ended
Type
Miniseries
Awards
Won 1 Emmy Award; 4 wins and 6 nominations in total.
Links
IMDb · TMDB · Official Website

Trivia about I Know This Much Is True

Mark Ruffalo filmed all of their Dominick scenes first, which required them to lose 15 pounds (6.8 kg) before changing their physique to play Thomas.
Gabe Fazio doubled for both brothers and lost 30 lbs to play Dominick while Ruffalo was filming Thomas's scenes.
A fire at a used car dealership in Ellenville on May 9, 2019 destroyed the building, the film crew's equipment and 20 vintage cars.
In May 2022, residents of Ellenville sued HBO and Mark Ruffalo for failing to clean up the fire that broke out on the dealership set.
Mark Ruffalo's performance earned them a Primetime Emmy Award, a Golden Globe and a Screen Actors Guild Award.
The casino in the final scenes is actually the new patient wing of the Vassar Brothers hospital, which was still under construction during filming.
Several local officials from Dutchess County play the members of the psychiatric safety review board in episode 4.
Filming lasted 115 days and used nearly two million feet of 35 mm film, a quantity Derek Cianfrance linked to the scale of the production.

Sources: Wikipedia (English)

Trailer for I Know This Much Is True

I Know This Much Is True Trailer

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Cast of I Know This Much Is True in other movies and series

Mark RuffaloDominick Birdsey / Thomas Birdsey
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The King TideMovie1923SeriesTogoMovieStar Trek: DiscoverySeriesFear the Walking DeadSeriesTrue DetectiveSeriesNumb3rsSeriesLaw & Order: Criminal IntentSeries

Top-Rated Episodes

  1. 1x06 Episode Six ★ 8.8
  2. 1x04 Episode Four ★ 8.4
  3. 1x05 Episode Five ★ 8.2
  4. 1x03 Episode Three ★ 8.1
  5. 1x01 Episode One ★ 7.8

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Frequently Asked Questions

How many seasons does I Know This Much Is True have?

I Know This Much Is True has 1 season and 6 episodes in total.

Where to Watch I Know This Much Is True?

I Know This Much Is True is available by subscription on Movistar Plus+ Ficción Total, HBO Max and HBO Max Amazon Channel (availability may vary by country).

Has I Know This Much Is True ended?

Yes. I Know This Much Is True has ended, and its final episode aired on June 13, 2020.

Who's in I Know This Much Is True?

The main cast includes Mark Ruffalo (Dominick Birdsey / Thomas Birdsey), Melissa Leo (Concettina Ipolita Tempesta 'Ma' Birdsey), Rosie O'Donnell (Lisa Sheffer) and Archie Panjabi (Dr. Patel).

Who created I Know This Much Is True?

I Know This Much Is True is created by Derek Cianfrance.

How long does it take to watch all of I Know This Much Is True?

With episodes of about 60 minutes, watching all 6 episodes takes approximately 6 hours.

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