The script was heavily influenced by the teachings of author Werner Erhardt. His est Training focused on changing a person’s mentality so they’d be better able to handle the situations they found themselves in. Again, flexing her muscles, Diana suggested incorporating Erhardt’s teachings into the script. Executive producer Cohen wasn’t too excited about all of that. He expressed his concerns after the movie was released: “the movie was becoming an est-ian fable full of est buzzwords about knowing who you are and sharing and all that. I hated the script a lot. But it was hard to argue with [Ross] because she was recognizing in this script all of this stuff that she had worked out in est seminars.” Even Joel Schumacher, who actually wrote the script said that he was thankful for the teachings but in reality those who had been exposed to them didn’t really implement them in their lives. “Everybody stayed exactly the way they were and went around spouting all this bullShyte,” he said.