Protectors and fighters Wu Yii-feng emphasizes that the most unique characteristic of a documentary film is the relationship established between the film maker and the subject. "It's unavoidable that the camera will be an intrusion. The key thing is whether or not this intrusion is uncomfortable to people, or whether or not that which is captured on film was staged deliberately."
吳乙峰強調，紀錄片最重要的特質在於作者和被拍攝者之間關係的建立，「攝影機的介入是無法避免的，重點是那種介入會不會令人尷尬、是不是刻意設計出來的？」