into the script, with Indiana's reaction to learning that he and his father slept with the same woman defused through humor. Boam said, "He's a bit humbled and surprised that his dad would be able to attract this young attractive woman ... but he isn't appalled by it." Boam, who was raised Catholic, used many religious themes and metaphors in his script for the film. In preparing the story, he studied grail literature, but ultimately invented new mythology. He made the grail a symbol for faith. He said, "I guess the major given of faith is that it can't be proved otherwise you don't need faith. So that is why I created the idea that the grail can't be removed (from its hiding place). You can find the grail, but you can't really prove that you found it." When Indiana Jones finally discovers the grail hidden among decoys, its knight guardian tells him that he will die if he drinks from the wrong cup. Boam said that this scene is a metaphor for "the one true God vs. false gods". He worried that the film's religious themes would face criticism from the general audience, as well as religious scholars. He was relieved when the criticism didn't appear, saying, "Nobody working on this movie was a religious scholar ... I was wondering if the numerous allusions to Christ in Indiana Jones were going to put people off. I was afraid the kids in the audience would think it was not a very hip subject matter."Indiana Jones and the Last Crusade was a hit film, earning over $474 million worldwide. Television Boam met writer Carlton Cuse through producer Bernard Schwartz. According to Cuse, Boam approached him after his work on the television series Crime Story and asked that the two form a writing partnership. The two had plans to write original films together, but they eventually developed the stories and scripts for Lethal Weapon 2, Lethal Weapon 3, and Indiana Jones and the Last Crusade. They formed a production company, Boam/Cuse Productions, and produced a television pilot based on The Witches of Eastwick. NBC requested the pilot in 1992, and it starred Catherine Mary Stewart and Julia Campbell. They also planned a comedy series called Cat Canyon. With Cuse, Boam co-created and produced the series The Adventures of Brisco County, Jr. featuring Bruce Campbell, which premiered on the Fox Network in 1993.