From the HuffPo:
"This is actually my first time talking about it publicly," Dunham said about the project. "I'm very excited about it. I'm not sure when it'll happen, but I'm in the process of [working on it]."
Written by Cushman, the 1994 novel -- which won the Newbury Prize in 1995 -- tells the story of Catherine, a 12-year-old coming of age in 1290 England. "[She] gets her period and her father basically says, 'Well, it's time for you to get married,' and she's like, 'Uh, no,'" Dunham told the crowd. "But it's hyper realistic and really pretty and it's full of incest and beatings, but it's a child's story. I've been obsessed with it since I was a kid." Dunham previously cited "Catherine, Called Birdy" as one of the two best books she's ever read about young girls in an interview with the New York Times in 2012. (Her other selection was Vladimir Nabokov's "Lolita.")
"It's a really interesting examination of sort of like coming of age and what's expected of teenage girls," Dunham said. "I'm going to adapt it and hopefully direct it, I just need to find someone who wants to fund a PG-13 medieval movie."