The film tells the story of a young girl's emotions as her family relocates from Minnesota to San Francisco. Director Pete Docter has said the film, which mixes science with his experience, has also resonated with the parents of special needs children.
The film features an all-star vocal cast including Amy Poehler, Bill Hader, Lewis Black and Mindy Kaling. The win is the studio's eighth in the category.
"Bear Story" won the best animated short Academy Award during Sunday's ceremony.
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