Beanie Feldstein and Kaitlyn Dever in Booksmart.

Kaitlyn Dever and Beanie Feldstein deliver star-making performances in Booksmart as Amy and Molly, two super-smart high school students looking to get crazy on graduation eve after years of hitting the books and missing all of the fun.

Olivia Wilde’s directorial debut is smart and funny; this is a film that feels like a relative of Superbad, which makes sense, considering Feldstein is Jonah Hill’s little sister. (They both have those those wide eyes while dryly delivering wise-ass asides.)

Besides this dynamic duo, the film is blessed with the presence of Skyler Gisondo (of Santa Clarita Diet) as Jared, the super-sweet and dorky rich kid; Jason Sudeikis (Wilde’s longtime partner) as the school principal; and Lisa Kudrow and Will Forte as Amy’s parents. However, the best member of the supporting cast would be Billie Lourd, daughter of Carrie Fisher, as the oddball student who keeps magically showing up at every party Amy and Molly visit.

The film is consistently funny—and just a little dark and nasty, with Wilde and cast navigating nicely from very funny to very awkward. Feldstein has comic chops that rival her brother’s, so here’s hoping this is the start of her headlining career.

Booksmart is playing at theaters across the valley.