《难忘的战斗》是由汤晓丹,天然,于本正执导，达式常,顾也鲁,陈述,程之,焦晃,郭凯敏,白穆,吴喜千,陈烨主演的战争片。该电影于1976年在大陆上映。1949年初夏，江南某城市。被解放的民众载歌载舞，欢迎解放军入城。国民党特务陈福堂（白穆 饰）以粮店老板身份蜇伏下来，伺机切断城市粮源，扼杀我新生民主政权。我军副团长田文中（达式常 饰）被委派为粮食采购工作队长，带人深入太平集，依靠地方党组织，发动群众，收购粮食。陈福堂指使山上的土匪武大癞子（程之 饰）四处抢粮，扰乱我军购粮计划，内奸刘志仁（焦晃 饰）向陈福堂出卖情报，致使我运粮船遭土匪袭击。田文中在区委工商联会议上揭露陈福堂破坏购粮计划的险恶用心，刘志仁则极力为陈开脱，田文中将计就计，故意把假情报泄露出来。刘志仁把运粮时间透露给陈福堂，一场引蛇出洞的好戏开场了...... 本片根据孙景瑞同名小说改编。
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