求英文表述一下<当幸福来敲门>的主要内容

当幸福来敲门》（The Pursuit of Happyness））（非官方翻译或称《追求幸福》、《追逐幸福》），电影取材真实故事，故事的主角就是当今美国黑人投资专家Chris Gardner。成功诠释出一位濒临破产、老婆离家的落魄业务员，如何刻苦耐劳的善尽单亲责任，奋发向上成为股市交易员，最后成为知名的金融投资家的励志故事。该片获得2006年奥斯卡最佳男主角提名。

The Pursuit of Happyness "(The Pursuit of Happyness)) (unofficial translation or" pursuit of happiness "," pursuit of happiness "), the film drawn true story, the protagonist of the story is that today's African-American investment expert Chris Gardner. To interpret the success of a verge of bankruptcy, his wife left home in dire straits salesman, how to fulfill our hard-working single-parent duty, and exert upward into the stock market traders, eventually became well-known stories of family financial investments. The film won the 2006 Best Actor Oscar nomination.