
마당을 나온 암탉, or Leafie, A Hen into the Wild, is a Korean animated film made late last year and will probably be released here in the west later this year.
The synopsis is Leafie, a hen who dreams of leaving the chicken farm she's spent her whole life in, finally escapes and ends up raising a duckling. Cue humor, heartwarming, and a lot of tear jerkers. It's a great film. You should find a way to catch an "early showing" if you haven't already.