‘Sharp Stick’ filmmaker Lena Dunham embraces naturalistic performances and cinema verité style for a powerful tale of family, sexuality, and womanhood.

Actress and filmmaker Lena Dunham may reference director Luis Bunuel’s 1967 film Belle de Jour in a festival Q&A panel. Still, Sharp Stick is cinematic kin to another Sundance storyteller, Todd Solondz, the director of art-house classics like Happiness and Welcome to the Dollhouse.