While many famous faces have made a name for themselves on their own, some have surprising familial connections to one another. Beanie Feldstein, who rose to fame after starring in 2019's Booksmart, is the younger sister of Jonah Hill and has frequently gushed over their sibling bond. She couldn't help but rave about her older brother, who even got a tattoo of her name amid her Great White Way debut in Hello, Dolly. "Oh, my God, I mean, he's my best friend in the world, so I'm always excited for him," Feldstein told Us Weekly and other reporters in January 2020.