Prelude to War was the first film of Frank Capra's Why We Fight propaganda film series, commissioned by the Pentagon and George C. Marshall. It was made to convince American troops of the necessity of combating the Axis Powers during World War II. This film examines the differences between democratic and fascist states.

Apple Annie is an aging New York City fruit seller whose daughter Louise has been raised in a Spanish convent since she was an infant. As she grows up, Louise is led to believe that her mother is a society matron called Mrs. E. Worthington Manville. Annie worries that her lie is in danger of being uncovered when she learns that Louise is sailing to New York with her new fiancé and his nobleman father.

British diplomat Robert Conway and a small group of civilians crash land in the Himalayas, and are rescued by the people of the mysterious, Eden-like valley of Shangri-la. Protected by the mountains from the world outside, where the clouds of World War II are gathering, Shangri-la provides a seductive escape for the world-weary Conway.

Longfellow Deeds lives in a small town, leading a small town kind of life. When a relative dies and leaves Deeds a fortune, Longfellow moves to the big city where he becomes an instant target for everyone. Deeds outwits them all until Babe Bennett comes along. When small-town boy meets big-city girl anything can, and does, happen.

Alice, the only relatively normal member of the eccentric Sycamore family, falls in love with Tony Kirby, but his wealthy banker father and snobbish mother strongly disapprove of the match. When the Kirbys are invited to dinner to become better acquainted with their future in-laws, things don't turn out the way Alice had hoped.

Mortimer Brewster, a newspaper drama critic, playwright, and author known for his diatribes against marriage, suddenly falls in love and gets married; but when he makes a quick trip home to tell his two maiden aunts, he finds out his aunts' hobby - killing lonely old men and burying them in the cellar!

Naive and idealistic Jefferson Smith, leader of the Boy Rangers, is appointed to the United States Senate by the puppet governor of his state. He soon discovers, upon going to Washington, many shortcomings of the political process as his earnest goal of a national boys' camp leads to a conflict with the state political boss.

This is one of seven major propaganda films made by the Department Of Defense during World War II, and it's directed by Frank Capra. In this installment of the "Why We Fight" propaganda series, we learn about the country of China and its people. With a brief history of the country, we also learn of why the Japanese wanted to conquer it and felt confident about succeeding. Finally, the history of the war in that theatre is illustrated and shows the stiff determination of the Chinese who use all their resources to oppose Japanese aggression to the end.

A runaway heiress makes a deal with the rogue reporter trailing her but the mismatched pair end up stuck with each other when their bus leaves them behind.

乔治（詹姆斯•斯图尔特 James Stewart 饰）在圣诞节前准备自杀，这时上帝传来旨意，派天使拯救他，并让他了解到自己一生的使命——拯救那些不幸的人。乔治小时候左耳有疾，在贝德福德镇上的一家药店帮工。他很机灵，深得老板器重，同时也很招女孩喜欢。某日，老板接到爱子死亡的电报，悲痛欲绝，配错了药，幸亏乔治才化险为夷。乔治从小嫉恶如仇，尤其看不惯富人专横跋扈。长大后，乔治一表人才，准备去读大学。这时，他的父亲去世了，他子承父业，协助叔父料理公司事务。然而公司经营状况不佳，在董事会会议上面临破产。如果公司破产，小镇将会有很多家庭陷入困境。乔治力排众议，说服了董事会，但是条件是他要担任董事会秘书长。这与他的大学梦相去甚远。而且，此时他还陷入了对一个女孩的爱恋之中……