Middle of Nowhere (2008)

A pair of co-workers at a small-town water park—restless troublemaker Dorian (Anton Yelchin) and the tightly wound Grace (Eva Amurri)—form an unlikely bond when Dorian cooks up an illicit plan to earn big money. With no assistance from a flaky, free-spending mom (Susan Sarandon) and competition from a sexy younger sister (Willa Holland), Grace needs all the help she can get if she's going to make it to college.