在这部谎言的诞生喜剧/爱情/奇幻片中,这是一个现实之外的、根本不知谎言为何物的世界，人们正常工作、生活，只是所有人讲的每句话都是真话。一个刚经历失业、失恋、穷困潦倒的年轻人马克（瑞奇·热维斯 Ricky Gervais 饰）有一天参透了这个秘密——他用一个谎言，让自己账户上的钱增加了，但是没见过谎言的人们完全相信他。尝到甜头的马克开始利用这个秘密，他开始不停说谎，用来谋取任何他想要的东西。随着马克的谎言越编越离谱，相信他的人们越来越多，让事情愈发不可收拾。而马克也渐渐发现，面对自己心爱的女人珍妮弗（珍妮弗·加纳 Jennifer Garner 饰），用“世界末日要来了”将她骗上床并不是自己想要的，能获得爱情的唯一手段仍旧是真实……

It's a world where everyone tells the truth - and just about anything they're thinking. Mark Bellison is a screenwriter, about to be fired. He's short and chunky with a flat nose - a genetic setup that means he won't get to first base with Anna, the woman he loves. At a bank, on the spur of the moment he blurts out a fib, with eye-popping results. Then, when his mother's on her deathbed, frightened of the eternal void awaiting her, Mark invents fiction. The hospital staff overhear his description of Heaven, believe every word, and tell others. Soon Mark is a prophet, his first inventive screenplay makes him rich, and he's basically a good guy. But will that be enough for Anna?

《谎言的诞生》给“谎言”自辩的机会。诚实是一种生理缺陷。谎言的诞生：谎言没了 矜持也丢了。太有趣的电影。关于说谎的寓言。真相和谎言真的如此不同吗。论宗教之起源。一念一天堂。《谎言的诞生》：许给我们一个虚拟的天堂。谎言的诞生。