《斗篷与匕首》是一部由美国地区于1946年出品的爱情类电影。该片由艾伯特·马尔茨、小瑞因·拉德纳、鲍里斯·安格斯泰、约翰·拉金、科里·福特、阿拉斯泰尔·麦克贝恩担任编剧，弗里茨·朗亲自指导拍摄。主要演员包括加里·库珀、Robert Alda、莉莉·帕尔默、弗拉迪米尔·索科洛夫、J·爱德华·布朗伯格、玛乔丽·霍希勒等美国著名影星。
Of all the Fritz Lang films I have seen, this may be the one that I was least enamored with. Gary Cooper seems miscast as an atomic scientist (Prof. Alvah Jesper), who is sent to Europe by the OSS to rescue other scientists who are being forced to cooperate with the Nazi atom bomb project. During his mission, he becomes involved with the Italian resistance, falling for plucky Gina (Lilli Palmer). I've read that Lang originally shot this film emphasizing the dangers of atomic power, but Warner re-edited and it fails to have any direction. It still shows a few Lang-esque moments, but this is only recommended for his most devout following as it really lacks any punch... or his signature panache.