All the other figures in his life, including his parents, are actors. Hundreds of millions of viewers plug in to take a peep, to intrude upon what Truman innocently and honestly believes to be his privacy. The man who runs Truman's life, Christoff, is basically god in the movie. The member's of his team obey Christoff almost blindly. They suspend their better moral judgment and succumb to his rules and to the brutal aspects of his persuasive dishonesty. .
When Truman finds out that he is in a fake world, Christoff finds it strange that Truman, having discovered the truth, insists upon his right to make choices and experience dilemmas. Christoff believes dilemmas are painful, unnecessary, and destructive. Christoff's fake world, the one he constructed for Truman, is choice free and dilemma free. Since Christoff's utopia was choice free it didn't survive. In our world today, we make choices everyday which keeps us surviving. Truman is programmed not in the sense that his spontaneity is extinguished. Truman is wrong when, in one of the scenes, he keeps shouting: "Be careful, I am spontaneous". The Director and the producers want him to be spontaneous and make decisions. But they do not want him to make choices. So they influence his preferences and predilections by providing him with an absolutely micro-controlled, repetitive environment. Such an environment reduces the set of possible decisions so that there is only one favorable or acceptable outcome at any junction. If our world was a controlled environment, everyone would make the same choices, and this would not give us room for change. In the movie Truman does decide whether to walk down a certain path or not. But when he decides to walk, only one path is available to him. Truman's world is constrained and limited, not his actions.
Truman's only choice in the movie is when he decides to walks out on the whole project. Christoff tries to explain to Truman the true nature of the world, but he prefers his narrow, personal, interest, and he walks.
