A great story twist can be found in 'The Usual Suspects'. The ending where it is revealed that Verbal Kint was actually Keyser Söze all along is a masterful twist. It takes the entire story that you've been following and flips it on its head. You thought you knew who the characters were and what was going on, but in the end, you realize you were completely misled.
One of the best plot twists is in 'The Sixth Sense' where it's revealed that the main character is actually dead. This completely changes the viewer's perspective on all the previous events in the movie.
One of the best plot twists is in 'Gone Girl'. The wife fakes her own death and frames her husband, completely turning the typical 'missing wife' love story on its head. It shows that not all love is as it seems and there can be dark, manipulative sides to relationships.
Best plot twists enhance stories by adding surprise. For example, in a mystery novel, a sudden plot twist can shock the reader and make them more engaged.
In 'Gone Girl', the sudden revelation about Amy's true nature and her elaborate plan is a great twist. The story leads you to believe one thing, and then it flips everything on its head. It shows how unreliable the narrators can be and keeps the readers on their toes throughout the whole novel.
The story of 'The Strange Case of Dr. Jekyll and Mr. Hyde' has a great twist. The fact that Dr. Jekyll and the evil Mr. Hyde are the same person is a classic and very impactful twist. It shows the duality of human nature in a very dramatic way. Throughout the story, you see these two characters as separate entities until the truth is revealed.
There was a story where a group of soccer hooligans who were known for their violent behavior actually ended up helping an injured player from the opposing team. They saw the player was in a bad way after a collision on the pitch and rushed to his aid instead of causing trouble. It was completely unexpected considering their usual reputation.
A good story is where Valeria discovers a secret of Doctor Doom. She uses this knowledge to try and persuade him to change his ways. It shows her courage.
One of the best twists is in 'The Murder of Roger Ackroyd' by Agatha Christie. The narrator turns out to be the murderer, which completely flips the reader's expectations as we usually trust the narrator's perspective.
One of the best plot twists is in 'The Sixth Sense' where it turns out that the main character, Dr. Malcolm Crowe, is actually dead. The whole time you think he's alive and trying to help a boy who sees dead people, but then you realize he's one of the ghosts. It's a brilliant twist that completely changes the way you view the entire movie.