The O.C.

The actress went to high school in Sedona.

Rachel said that some of the cast acted like "little a--holes."

"I've always felt ashamed in a way to really talk about what went on behind the scenes."

The actress admits there were other ways 'The O.C.' could have handled her exit.

Find out what the core cast of 'The O.C.' -- including Ben McKenzie, Mischa Barton, Rachel Bilson, Adam Brody and more -- is up to now.