Inside Out - Disney/Pixar
It's hard to isolate any particular ACT relevant scenes - the whole movie was an animated version of ACT come to life! Essentially, Riley (11 year old girl) has to learn to live with a new life that her parents have chosen, leaving her old, highly valued life behind. She has 4 emotions controlling her from inside her brain - Joy (the dominant emotion up to this point), Sadness, Anger and Disgust.
Due to the new experiences of distress, loneliness, disappointment and anger, Riley starts to experince 'negative' emotions for the first time and Joy has huge problems accepting this. She fights desperately and valiantly to prevent Riley experiencing Sadness, but eventually learns to accept that Sadness is a valid emotion and has a useful part to play. Riley is eventually able to include Sadness, for the old friends and life she has left behind, while building a new life in her new town, heading back towards her values.
Plus, it's really sweet, funny and engaging.