7岁的奥利芙，戴眼镜，小肚腩，做一夜成名的美梦，坚信自己有朝一日能当选美国小姐。 　　爸爸，推销成功学课程的讲师，相信“世界上只有两种人，成功者和失败者”，四处贩卖他的“成功九部曲”；哥哥，自闭男，崇拜尼采，为了考上飞行学院发哑誓，九个月没有同家人说话；舅舅，自称是美国最好的普鲁斯特研究学者，同性恋，恋人和同事跑掉、失业，自杀未遂，生活混乱；爷爷（阿兰·阿尔金 饰），被养老院赶出来的老流氓，满嘴脏话、吸毒；妈妈，是这个疯狂家庭唯一正常的人。 　　在家人的支持下，奥利芙参加了“阳光小美女”的选美比赛，一家人踏上了集体寻梦的旅程。 　　奥利芙能否如愿当选？家庭成员们怎样才能度过他们各自的危机？In Albuquerque, Sheryl Hoover brings her suicidal brother Frank to the breast of her dysfunctional and emotionally bankrupted family. Frank is homosexual, an expert in Proust. He tried to commit suicide when he was rejected by his boyfriend and his great competitor became renowned and recognized as number one in the field of Proust. Sheryl's husband Richard is unsuccessfully trying to sell his self-help and self-improvement technique using nine steps to reach success, but he is actually a complete loser. Her son Dwayne has taken a vow of silence as a follower of Nietzsche and aims to be a jet pilot. Dwayne's grandfather Edwin was sent away from the institution for elders (Sunset Manor) and is addicted in heroin. When her seven-year-old daughter Olive has a chance to dispute the Little Miss Sunshine pageant in Redondo Beach, California, the whole family travels together in their old Volkswagen Type 2 (Kombi) in a funny journey of hope of winning the talent contest and to make a dream come true.