Pinocchio
Terrifying and beautiful, an animation that wasn't afraid to tackle such sensitive themes.
First, we have Geppetto, the inventor and carpenter, who wishes his creation truly existed so he could love it like a son. This same carpenter travels the seas in search of his beloved son and ends up in the stomach of a whale.
Then we have Pinocchio, who, like any innocent child, struggles to listen to his own conscience, leading him to fall prey to the cheap tricks of predators who only care about money and nothing more. First, they take him into the hands of the artistic "industry," which kidnaps, exploits, and then imprisons its victims within that filth. Coincidentally, during this time Pinocchio renounces the opportunity he received to become a real boy and is reduced once again to a mere puppet, albeit now without his strings. Finally, despite his lies and denial, divine providence, in the form of a Fairy, forgives him, giving him another chance to try again.
And then comes the heaviest part of the film. Pinocchio is kidnapped again by those same predators, but this time they take him to the lap of the true demons of this world, those who wish to corrupt children through vices, thus animalizing them, stripping them of everything that refers to being human and then selling them like cattle to be used for obscure purposes, all within a place called "Pleasure Island". Through art, much can be understood about this world; even a children's film can warn us about the madness of those who have a lot of money.
But in the end, at least Pinocchio manages to escape and reject his complete bestialization, even if out of fear. Finally, through the exercise of his virtues and the greatest act of love we can offer (sacrifice for others), he is reborn from the waters, returning to life, now as a real boy.