Down in the Valley movie

Tobe is about 16, living with her dad and younger brother in LAs San Fernando Valley. She invites a gas station attendant named Harlan to come to the beach with her and her friends. Hes from South Dakota, wears a cowboy hat, talks country, and has been a ranch hand. They have a great time, his simple expressions seem like wisdom, hes attentive and polite, and even though hes more than twice her age, she wants to spend time with him. When her father objects, she rebels. Harlan, meanwhile, thinks shes his soul mate, and he starts making plans to get her away from her father. Worlds are set to collide, but which ones?