影片故事是俗得不能再俗的“两个好友决定开始一场‘不谈爱不谈性’的关系(正如电影片名所示),但却渐渐发现在相处中他们爱上了对方”。不求回报,由伊万·雷特曼执导,娜塔莉·波特曼、艾什顿·库彻等主演的喜剧爱情电影。影片讲述了一对青年男女相互承诺只随性、不恋爱,随着交往的深入最终坠入爱河的故事。娜塔莉·波特曼Natalie Portman ....Emma Kurtzman艾什顿·库彻Ashton Kutcher ....Adam Franklin加利·艾尔维斯Cary Elwes ....Dr. Metzner凯文·克莱恩Kevin Kline ....Alvin蕾克·贝尔Lake Bell ....Lucy奥莉薇·瑟尔比Olivia Thirlby ....Katie KurtzmanTalia Balsam ....Sandra Kurtzman奥菲利亚·拉维邦德Ophelia Lovibond ....Vanessa格蕾塔·葛韦格Greta Gerwig ....Patrice菲尔·拉马Phil LaMarr ....Police Officer卢达·克里斯Ludacris…Wallace (as Chris 'Ludacris' Bridges)杰克·M·约翰森Jake M. Johnson…Eli (as Jake Johnson)敏迪·卡灵Mindy Kaling…Shira塔拉·巴萨姆Talia Balsam…Sandra Kurtzman奥菲利亚·拉维邦德Ophelia Lovibond…VanessaGuy Branum…GuyBen Lawson…SamJennifer Irwin…Megan阿德希尔·卡尔安Adhir Kalyan…KevinBrian H. Dierker…Bones (as Brian Dierker)Abby Elliott…JoyVedette Lim…Lisa加里·戴维·古德伯格Gary David Goldberg…Emma's RelativeArmen Weitzman…Taxi DriverShaun Russell…LACMA Guard (as T. Shaun Russell)Nealla Gordon…Lydia (Female Dr.)Seth Morris…Man with DogNasim Pedrad…Writer伊丽莎白·梅里威瑟Elizabeth Meriwether…WriterMollee Gray…SariDerek Ferguson…Benji马修·莫伊Matthew Moy…ChuckTyne Stecklein…VictoriaKym Connor…Stage MomRenna Bartlett…Stage Assistant DirectorJennifer L. Hamilton…On Camera ChoreographerKrystal Ellsworth…Secret High DancerKim Marko Germar…Secret High DancerMegan Honore…Secret High DancerNick Lanzisera…Secret High DancerMoira 'Anjolie' Ma..…Secret High DancerDalphe Morantus…Secret High DancerKatrina Norman…Secret High Dancer (as Katrina Katie Norman)