“There’s nothing I don’t know about myself,” Greta Gerwig’s Brooke says. That’s why I can’t do therapy.” That’s among the snappy lines in Mistress America, which Gerwig wrote with director Noah Baumbach. She plays an adventurous, full-of-life transplanted New Yorker who brightens the life of her stepsister-to-be Tracy (Cannes Chopard Trophy winner Lola Kirke), a lonely college freshman who is underwhelmed with campus and city life. Brooke is everything Tracy wants to be, and soon she is following the older woman on a number of mini-adventures. These include confronting Brooke’s nemesis — the woman she says “stole my ideas and my fiance and then she literally stole my cats.”

Heather Lind, Jasmine Cephas Jones, Cindy Cheung, Matthew Shear and Kathryn Erbe co-star in the R-rated film, which Baumbach and Gerwig also produced along with Scott Rudin, Lila Yacoub, Rodrigo Teixeira. Fox Searchlight acquired the pic in January ahead of its Sundance premiere and will open it August 14. Check out the first trailer.