When Disney released Chicken Little into theaters, and it failed, it seemed like the sky was falling for the House of Mouse. A few years later Disney would put out their final films using the traditional 2D Animation style and move completely into CG Animation. With studios like Pixar and Dreamworks leading the way, Disney had to figure out a way to stay in the game. Though after eventually finding their footing, Disney is now beginning to revert back to it's 2D Animation style, at least partially.

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https://collider.com/shrek-jeffrey-ka...
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https://www.moviefone.com/news/pixar-...
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https://www.linearity.io/blog/first-a...