Mark Ruffalo, 52, may play both identical twin brothers in the HBO series I Know This Much Is True, but the characters can’t exactly be described as doppelgängers.
This is because Mark underwent extreme weight changes to film as each brother. The most radical transformation, however, was apparent in his role as Dominick Birdsey.
In the series adapted from Wally Lamb’s novel of the same name, Dominick takes care of his twin, Thomas, who suffers schizophrenia.
To accurately portray Dominick’s nature as the “neurotypical brother,” he went on a 1,000 calorie-a-day diet to drop 20 pounds, writer and director Derek Cianfrance told The Wrap in an interview published on June 13. “I guess you could say he was always a little bit hangry.
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