For questions about "The Truman Show", a 1998 movie starring Jim Carrey about a man who has spent his whole life in a fake town while being broadcast on television without his knowledge.
Refers to the 1998 movie about a man who is involved in a reality television show but is unaware of this:
The film chronicles the life of a man who is initially unaware that he is living in a constructed reality television show, broadcast around the clock to billions of people around the globe. Truman becomes suspicious of his perceived reality and embarks on a quest to discover the truth about his life.
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Read more about it on Wikipedia or IMDb.
This tag is to be used when inquiring about anything regarding this particular movie.
Per this meta discussion, this is on-topic.