It's not even a spoiler. There is no great plot reveal at the end, it's already established in the first 10 minutes that Truman is living a fake life inside a g

It's not even a spoiler. There is no great plot reveal at the end, it's already established in the first 10 minutes that Truman is living a fake life inside a giant dome. Sure, the post above gives away some of the specifics of how the character experiences the denouement. But hardly a spoiler. And, as others have said, you can't expect perfect secrecy to be maintained in discussions of a 25 year old film.