单亲妈妈阿琳·麦肯尼(海伦·亨特 Helen Hunt饰)生活拮据,为了抚养儿子特雷弗·麦肯尼(海利·乔·奥斯蒙特Haley Joel Osment饰)而拼命工作,唯有借酒消愁才能打发深深的失落与无助。相依为命的两母子,一直过着毫无希望的生活。然而这一切在有一天发生了改变。特雷弗的社会学老师尤金·赛门特(凯文·斯帕西Kevin Spacey饰)布置了一道特殊家庭作业:让世界变得更美好。深信善有善报的特雷弗,决心从自己做起,于是他把无家可归的流浪汉请到了自己家中。 以彰显人性本善,宣传世界美好为题的社会伦理片《让爱传出去》,由美国女导演咪咪·莱德执导。咪咪为本片推出全奥斯卡阵容:曾获奥斯卡最佳男主角的凯文·斯帕西担当男主角,女主角则由荣获过奥斯卡最佳女主角的海伦·亨特出演,童星海利·乔·奥斯蒙特饰演让世界变得更加美好的小主人公特雷弗。Young Trevor McKinney, troubled by his mother's alcoholism and fears of his abusive but absent father, is caught up by an intriguing assignment from his new social studies teacher, Mr. Simonet. The assignment: think of something to change the world and put it into action. Trevor conjures the notion of paying a favor not back, but forward--repaying good deeds not with payback, but with new good deeds done to three new people. Trevor's efforts to make good on his idea bring a revolution not only in the lives of himself, his mother and his physically and emotionally scarred teacher, but in those of an ever-widening circle of people completely unknown to him.