They ran away and found themselves.

Standing Up (2013)

Directed by D.J. Caruso

Based on one of the most beloved Young Adult novels of all time: Two kids are stripped naked and left together on an island in a lake - victims of a vicious summer camp prank; But rather than have to return to camp and face the humiliation, they decide to take off, on the run together. What follows is a three day odyssey of discovery and self-discovery.