Scenes with dialogue were filmed twice, in German and in English, meaning that the actors' own voices (as opposed to dubbed dialogue by voice actors) could be included in the English version of the film.
有对白的场景分别以德语和英语被拍摄了两次，这意味着演员自己的声音(与配音演员的对话不同)可以被包含在电影的英文版中。