The Truman Show (1998)
The Truman Show is a 1998 American satirical social science fiction film directed by Peter Weir and written by Andrew Niccol. The cast includes Jim Carrey as Truman Burbank, as well as Laura Linney, Noah Emmerich, Ed Harris and Natascha McElhone. 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 across the globe. Truman becomes suspicious of his perceived reality and embarks on a quest to discover the truth about his life.
More at Wikipedia.