I read an article where director William Malone talked about Klaus Kinski's involvement in this movie. Apparently, he was brought in by the producers to the complete surprise of the director and everyone else in the cast and crew, and had to be hastily shoehorned in. He was supposed to have a greater role but was too difficult to work with. He kept doing things like bragging about raping his daughter and he refused to perform unless Malone literally screamed at him and got physical. The last straw was when he brought a fifteenish girl, whom he identified as his "date", to a lunch meeting. When pressed about where he found her, he shrugged and said, "Oh, from a schoolyard." The producers quickly cut him a paycheck and told him to get lost.