“I'm an Atheist,” says Angier. “I don't believe in God, Gods, Godlets or any sort of higher power beyond the universe itself.... I'm convinced that the world as we see it was shaped by … evolution through natural selection.”
As a witness, Brando refused to take an oath to tell the truth before God, claiming he is an atheist. He was sworn in under an alternate oath, which would seem to be the one that should be used.