I’m with Crunchy. Doesn’t matter how old the book/movie is, if you’re giving away important info that is meant to be a surprise, post a spoiler.
In most cases, the journey is the point. But to say this as if it absolves people of the responsibility to preserve secrets that will enhance a first viewing is overstating the case. The big twist at the end of The Sixth Sense is a big part of enjoying the movie the first time through. It’s worthy of a second viewing to see all the clues you missed the first time, true, but that whammo at the end is a big part of what the movie is about. Also, repeated viewings depend in some part on the feelings envinced by the first viewing, and knowing important information about the story ahead of time that diminishes the enjoyment of the story can then affect subsequent viewings.
And then there are movies that rely entirely on the twist ending for their impact. The Vanishing (original) has one of the great endings of all time, and the suspense in the movie, which is palpable, is driven entirely by not knowing what will happen. Great movies are great even if you know the big secrets, but a first viewing is much enhanced by coming to it cold. There are good movies that rely entirely on the surprises they hold.