'Bachelorette' Writer-Director Leslye Headland at Sundance

Writer-Director Leslye Headland wrote the story for Bachelorette in 2008, which is based on the sin of gluttony and explores the dark world of eating disorders, drugs and casual sex.

"Adam [McKay] and Will [Ferrell] came to see it and they said, 'You should turn this into a movie,'" Headland told THR on the red carpet. "And I actually had already written the screenplay, so I was like 'Oh, funny you should say that, cause I happen to have my screenplay right here.' It really was one of those Hollywood stories."