I Know This Much is True (2020) is a mini-series about a man who goes through hell with his relationship with his schizophrenic twin brother whom he tries to release from an asylum. Mark Ruffalo plays both Dominick Birdsey and his troubled brother Thomas. It does matter who Mark plays as long as we get to see him naked. Want to see Mark's shaft? You get to see it! We see watch him take a shower in which he shows his shaft and pubes when he asks his wife to take a look at his balls. Speaking of balls, his balls get a little beaten up, so we see polaroid shots of his bruised balls when he goes to the doctor. While those balls are prosthetics, Mark's hairy chest is all real and we KNOW that's true.