Well, the true story behind the Changeling film is quite complex. A mother's son vanished without a trace. When a child was presented to her as her son, she knew it wasn't him. However, the authorities were dismissive of her claims. This led to a long and arduous journey for her to prove the truth. The film adaptation took this real - life situation and added elements of horror and suspense. It explored themes of loss, identity, and the powerlessness of an individual against a corrupt system. The story shows how the mother was failed by those who were supposed to protect her and her family, and how she fought against all odds to expose the truth.
Indeed, 'Changeling' is based on a real story. The real - life events that inspired the film are centered around Christine Collins. Her son disappeared mysteriously. Later, the police's actions in trying to cover up their incompetence by giving her a different boy added to her nightmare. This movie does a great job of bringing this dark chapter of history to light.
Changeling is purely fictional. It's crafted by the imagination of the writers and not based on real events. However, it might draw inspiration from various real-life elements to make the story more engaging.