《全金属狂潮》第四季动画将于2018年4月开播,动画由XEBEC制作。《全金》的第四季动画也是有生之年系列,距离京都动画当年的第三季已经有将近12年的时间。在2016年的Fantasia学园祭上公布《全金属狂潮 IV》这个标题时官方就说明“IV” 不是罗马数字4,1月19日第四季的副标题正式公布,“IV”是两个英文单词的首字母缩写——“Invisible Victory”(无形的胜利)。。本片讲述了一个科幻悬疑的故事:翼生与林溪为查明校花消失的真相,被牵扯进一个巨大的科技阴谋中,一切都源自叶芊和翼教授在科学实验中的矛盾分歧,叶芊认为长久的实验研究得出了成果就应该公之于众,用于临床,为了科学的进步所有的牺牲都是值得的;而翼教授认为,再伟大的科学成果,如果他违背人性都应该立刻制止。。一个年轻的拿破仑军官追踪一个神秘的女人而来到一个年迈男爵的城堡,在那里他发现这个女人是听命于一个老巫婆,其最终目的是迫使男爵自杀……
Roger directed for two days on a set left over from a previous production, and without a proper script. He hired Francis Coppola to write a script and finish the picture. After five weeks of shooting, Roger fired Francis, and hired me to finish the picture. Jack Hill was hired to write a new script with me. A lot of what Francis shot was thrown out, except for the stuff with the witch from WIZARD OF OZ. (Dorothy Newman), and I finished the picture in five days of shooting. All of the interiors are Roger's (with the exception of Francis's witch's lair), and most of the exteriors are mine. To the best of my recollection, and contrary to legend, Jack Nicholson did not direct any of the film.。