Even if it was it was the name of Christ being used as entertainment...it wasn't a real prayer. It was a prayer used for entertainment purposes to garner profit.
Sounds like you are describing Mel Gibson's The Passion of the Christ!
Praying is a human activity. A laudable and noble human activity. It is legitimate for a dramatic production to depict human activities, both good and evil.
Interestingly, Jim Caviezel has received letters from people who were shocked that he “swore” in some role or other. His response is the correct one: “It’s called ‘ACTING.’”