Watch the trailer for new upcoming drama series I Know This Much Is True starring Mark Ruffalo.
Sky have released a new trailer for upcoming drama series I Know This Much Is True starring The Avengers' Mark Ruffalo.
The six-part series - airing on HBO in April and Sky Atlantic in June - sees Ruffalo play the parts of twin brothers Dominick and Thomas Birdsey and follows them in different stages of their lives as they negotiate family secrets, affairs and death.
