Spoilers have been part of storytelling culture for as long as there have been endings worth experiencing. From the conclusion of Romeo and Juliet to the surprises in the latest comic book movie, spoilers are something that can make or break a cinematic experience. Even still, there's always been people that went out of their way to ensure some knew the biggest twists. But before YouTube gave way to leaked scenes, trusted entertainment sources were the culprit of one of Hollywood's biggest twists with Alfred Hitchcock's Psycho.
Source：https://www.cbr.com/psycho-earliest-spoiled-movie/
