Another theme the movie seems to deal with is religious symbolism. The arrival of a spaceship in Washington D.C from the sky carrying a celestial being that wishes to speak to the world but is denied doing so He is wounded and taken to the hospital where he escapes and assumes the identity of a Mr. Carpenter. It is after performing a "miracle" this Mr. Carpenter finds himself persecuted and executed by the powers-that-be for trying to deliver a message of peace and universal brotherhood. It is only after the Mr. Carpenter is resurrected and ascends into the heavens that his message is allowed to spread amongst the peoples of the world. This whole movie is taken from the bible and is a parody of Jesus Christ, right down to the usage of the name “Carpenter”, which was the job Jesus took during his lifetime.
The movie also predicts what the military thinks like and the power it has and how it cannot always be good. The part of the movie where Klaatu speaks to the scientists about atomic power is an example. He speaks about using it for good like in his space craft, not for making weapons to destroy each other. He goes on to say that continuing to use it that way will only lead to earths destruction. Klaatu is informing the military to think on