《牛角石》是由石一夫执导，于中义,李百万,田宝富主演的剧情片。该电影于1976年在大陆上映。1962年的中国农村，围绕着是否搞“三自一包”，在牛角石大队展开了一场针锋相对的政治斗争。以地委副部长陈秉仁、大队支委何一得为代表的一批当权派积极贯彻，以支部书记石兰子为首的一批群众坚决反对。何一得造谣中伤兰子，还毒死了她家的猪。兰子给毛主席写信反映了这些情况。陈秉仁为使牛角石大队按他的指示办事，给这儿派来一个工作组，以到张家湾学习为名，撤掉了兰子。兰子在张家湾串连群众，把已经实行了“三自一包”的张家湾又翻了过来。接着，她带领这里的群众赶到正在强行分地的牛角石，制止了这种分田到户的行动。陈秉仁气急败坏，把兰子扣押隔离，企图把她打成反党分子。关键时刻，县委书记来到，宣布“三自一包”是所谓“错误”的。何一得受到处分，陈秉仁被调回机关；牛角石大队因此得了一面红旗。
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