Two years ago on a trip to the United States, Hu ran into Yu Wei-ch'ing of Cuckoo's Nest Production Inc .. Yu suggested that Hu use animation to portray the special effects involved in the story.
三年前，胡金銓在一次演藝界的聚會中，向宏廣卡通公司的導播兼企劃部經理餘為政說起這個故事，餘為政也覺得很適合以卡通方式來表現。