Film Focus: The Truman Show

I was watching the Truman Show on TV the other day and one of the characters said something quite interesting:

“We accept the reality of the world for which we are presented”

Truman Show (1998)

In this context the character was saying that even though the world seemed false to the audience, to Truman (the main character) it was perfectly normal.
This links quite well with my project. If a designer can establish a reality at the start of a film it will make it more believable for the audience. If the characters believe it then the audience will believe it.