
Passion projects can go all sorts of wrong ways, but Lena Dunham has made something of a triumph in “Catherine Called Birdy,” a medieval coming-of-age story that’s part “Bridget Jones’s Diary,” part Mel Brooks and all joy.
The film is based on a book she discovered at age 10, when she was an angsty fourth grader in New York City. She found a kind of comfort and coziness in Karen Cushman’s Newbery Honor-winning novel about a spirited 14-year-old living in the year 1290 in the English countryside.