Actor and Executive Producer Mark Ruffalo and director Derek Cianfrance share what the limited series is about at its core. #HBO #IKnowThisMuchIsTrueHBO
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Based on the 1998 bestselling novel by Wally Lamb, adapted and directed by Derek Cianfrance, this limited series follows the parallel lives of identical twin brothers, played by Mark Ruffalo. A family saga, it tells a story of betrayal, sacrifice and forgiveness set against the backdrop of 20th-century America.
Official Site of I Know This Much Is True on HBO: https://www.hbo.com/i-know-this-much-is-true
I Know This Much Is True: The Heart of the Story (Season 1 Web Exclusive) | HBO