Two high school girls are best friends until one dates the other's older brother, who is totally his sister's nemesis.
Hailee Steinfeld
as Nadine Franklin
Woody Harrelson
as Mr. Bruner
Haley Lu Richardson
as Krista
Blake Jenner
as Darian Franklin
Kyra Sedgwick
as Mona Franklin
Hayden Szeto
as Erwin Kim
Alexander Calvert
as Nick Mossman
Eric Keenleyside
as Tom Franklin
Nesta Cooper
as Shannon
Meredith Monroe
as Greer
Katie Stuart
as Jeannie
Lina Renna
as Little Nadine
