Catherine Called Birdy is a novel beloved by many who grew up in the '90s. One millennial in particular who remembers the book fondly is writer and director Lena Dunham. She's translated the novel into a wry coming-of-age movie starring Bella Ramsey as Catherine, a smart and spirited teen living in medieval England. When her parents set out to match her with a suitor, she finds increasingly clever ways to resist any such arrangement.