The crew only made a few modifications to the house before filming. They painted the exterior, put other furniture in the house (they also used the house for the interior shots of Trumans house) and they changed the house number above the door into 36. The owners think that they might did that because 36 is visually more pleasing than 31. After filming the owners decided to leave the dubbel number on the house and after all these years it is still there!
Truman Burbank is the star of The Truman Show, a 24-hour-a-day reality TV show that broadcasts every aspect of his life without his knowledge. His entire life has been an unending soap opera for consumption by the rest of the world. And everyone he knows, including his wife and his best friend is really an actor, paid to be part of his life.