The combination of cutting-edge motion capture technology, a bond between actors and Stella Adler’s training allowed Mark Ruffalo to pull off the impressive double-act of playing twin brothers in the HBO limited series “I Know This Much Is True.” In the adaptation of the 1998 novel by Wally Lamb, which debuts Sunday, Ruffalo portrays brothers…

via Inside Mark Ruffalo’s Transformation Into Twins for ‘I Know This Much Is True’ — Variety