I Know This Much Is True: Official Teaser | HBO

A family saga between twins in a story of betrayal, sacrifice, and forgiveness. Based on the bestselling novel by Wally Lamb,and adapted and directed by Derek Cianfrance, I Know This Much Is True starring Mark Ruffalo premieres May 10. #HBO #IKnowThisMuchIsTrue #IKTMIT Subscribe to HBO on YouTube: Watch Now HBO NOW: HBO GO: Get More HBO Official Site: Twitter: Instagram: