I Know This Much Is True: Miniseries (2020)

I Know This Much Is True

Critics Consensus

I Know This Much is True's relentlessly grim plotting makes it a difficult watch, but the strength of Mark Ruffalo's dual performances is enough to make it a dark tale worth tuning into.



Critic Ratings: 54


Audience Score

User Ratings: 130

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Air date: May 10, 2020
Air date: May 17, 2020
Air date: May 24, 2020
Air date: May 31, 2020
Air date: Jun 7, 2020
Air date: Jun 14, 2020

I Know This Much Is True: Miniseries Videos

Tv Season Info


Mark Ruffalo
as Dominick Birdsey/Thomas Birdsey
Rosie O'Donnell
as Lisa Sheffer
Archie Panjabi
as Dr. Patel
Imogen Poots
as Joy Hanks
John Proccacino
as Ray Birdsey
Philip Ettinger
as Dominick Birdsey/Thomas Birdsey (young adult)
Aisling Franciosi
as Dessa Constantine (young)
Michael Greyeyes
as Ralph Drinkwater
Guillermo Díaz
as Sergeant Mercado
Marcello Fonte
as Domenico Onofrio Tempesta
Juliette Lewis
as Nedra Frank
Kathryn Hahn
as Dessa Constantine
Show More Cast

News & Interviews for I Know This Much Is True: Miniseries

Critic Reviews for I Know This Much Is True Miniseries

All Critics (54) | Top Critics (20)

It's not Ruffalo's fault - he's great here - but the material is spread too thin over too much canvas, then culminates in too banal a "truth." In a word, it's as dull as it is grim.

May 7, 2020 | Rating: 2/4 | Full Review…
Top Critic

Each brother could become a showy caricature of their written selves, and yet [Ruffalo] lives in the small, quiet moments as well as big, explosive outbursts.

May 7, 2020 | Rating: B | Full Review…
Top Critic

"I Know This Much Is True" misses the mark in terms of storytelling. It just sits there, a roiling mass of misery that fails to provide you with a compelling reason to keep watching.

May 7, 2020 | Full Review…

Seeing actors do what they do best, with Cianfrance giving them the space to do it, makes I Know This Much is True a real feast.

May 8, 2020 | Rating: 3.5/4 | Full Review…

It's hard to imagine this grim wallow -- which mistakenly views trauma and drama as interchangeable -- playing that much better even in a time of overwhelming peace and prosperity.

May 7, 2020 | Rating: 2/5 | Full Review…

The series is a carnival of horrors weighed down by moralizing, hysteria, and cross-associations.

May 6, 2020 | Rating: 1.5/4 | Full Review…

Ruffalo's tour de force feels just like a vehicle for him. But not for the whole story that should have been told. [Full review in Spanish].

Jul 14, 2020 | Rating: 2.5/4 | Full Review…

Mark Ruffalo delivers what may be the finest performance of his career. Gritty, challenging and an incredible ensemble cast to include Native actors Michael Greyeyes and Tatanka Means.

Jul 13, 2020 | Rating: 10/10 | Full Review…

I Know This Much is True does not manage to fully captivate its audience due to its very lose adaptation of the source material. [Full Review in Spanish]

Jun 10, 2020 | Rating: 2.5/5 | Full Review…

Ruffalo is convincingly grim in both roles, but this kind of dark drama that tries to find poetry in misery won't be what most people need right now.

May 22, 2020 | Full Review…

The series is gorgeously written, well-made and features what may well be a career defining performance from star Mark Ruffalo.

May 6, 2020 | Rating: 4/5 | Full Review…

A six-part epic of unending misery, piling on as much torture for Ruffalo's twin protagonists as it does for the audience.

May 2, 2020 | Full Review…

Audience Reviews for I Know This Much Is True: Miniseries

  • 3d ago
    Just doing EP2 now and I'm completely glued. A must.
  • Jul 02, 2020
    Definitelworth watching. Riveting and compelling. I loved it.
  • Jul 01, 2020
    E bun dar e foarte intunecat
  • Jun 23, 2020
    Mark Ruffalo is incredible, along with all of the other characters. It's a beautiful and difficult series to watch, but well worth it!
  • Jun 22, 2020
    Simply outstanding. I Know This Much Is True boasts an incredible dynamic duo performance by Ruffalo and a knockout by Leo. This is a sad, tragic, emotional, important, well, trip. I Know This Much Is True.
  • Jun 21, 2020
    Mark gives this dual role a performance worthy of accolade and peer recognition. The filming/ direction is brilliant. The suffering is difficult but moves along to make you want, like the main character, to know why, how, and who. Rosie O is amazing. Whether you are a fan of hers or not, her acting chops are stallar! All the actors are simply flawless. I could not stop watching!! I wish there were more films and series as intelligent, honest, and well acted as this. Thank heavens they understood that music was not a main character and it was not over played as most series do. Bravo!!
  • Jun 21, 2020
    Mark Ruffalo delivers two Emmy-worthy performances as both an emotionally overburdened house-painter and his paranoid schizophrenic brother. As if that's not enough, we follow Ruffalo's character as he deals with horrific revelations in his grandfather's diary - only to learn in the finale that the emotional ringer we'd been put through was just a red herring. So how do you rate five darkly gripping episodes followed by a hopeful but ineffective finish?
  • Jun 20, 2020
    A bit dark at times, but the great performances by Mark Ruffalo, Rosie O' Donnell, Archie Panjabi and others more than make up for it. Well worth watching.
  • Jun 20, 2020
    Beautifully directed and acted—everyone is great in this tense but human drama. For those wondering what it's like, it has overtones of "Ordinary People" and "Manchester by the Sea." Mark Ruffalo is amazing—a modern-day Marlon Brando. I'm recommending it to all my cinephile friends.
  • Jun 20, 2020
    To watch this is to essentially read the book, minus the roughly 300 pages or so of Tempesta's manuscript which was tough to get through. I don't quite understand why it's being called "depressing," the ending is positive and incredibly cathartic. It's certainly no less saddening than Manchester by the Sea, a film that critics adored. And as good as Casey Affleck was, not many performances that I have seen in my lifetime rival that of Mark Ruffalo's here. It's hard to know whether this series would have had such an impact on me had I not read the book, but it follows the book so closely, that I think those who haven't read the book and lack the time and energy to power through 900+ pages may just as well watch this and read the book afterward. For those who've read the book, it's a must watch.

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