2h 36m
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In the 1940s, the world was in turmoil, and it was crucial to decipher the enemy's communication codes in a timely and accurate manner. Rong Jinzhen has shown amazing mathematical talent since her childhood, and because she solved the problems assigned by her math teacher, she was noticed by more people, and even walked into the door of code-breaking by mistake.
Liu Haoran
容金珍
John Cusack
希伊斯
Chen Daoming
郑某
Daniel Wu
小黎黎（容小来）
Yu Feihong
叶筱凝（容太太）
Chen Sicheng
我
Ren Luyao
翟莉（小梅）
Chen Yusi
容必瑜
Yutian Wang
瓦西里
Zhou You
严实
Zhu Zhu
范丽丽（希太太）
Cao Cuifen
老年容必瑜
Wu Yanshu
老年翟莉（小梅）
Xu Huanshan
老年瓦西里
Wang Baoqiang
阿炳
Xiao Yang
棋疯子
Pan Yueming
钱教授
Sha Baoliang
美蒋特务
Ouyang Nana
情报员
Jason Koo
美蒋特务
Qiu Xinzhi
台军将领
Wang Longzheng
马主任
Yuan Jinhui
童年容金珍
Feng Xueya
少年容必瑜
Zhou Yemang
曾处长
Liu Jin
周恩来
Andy Friend
麦克唐纳
Jiang Han
卫兵小个子