No Strings Attached is a Comedy, Romance film directed by Ivan Reitman and written by Elizabeth Meriwether. It was released on 11 February 2011 (Vietnam). It stars Natalie Portman, Ashton Kutcher, Kevin Kline. The film’s content : A guy and girl try to keep their relationship strictly physical, but it’s not long before they learn that they want something more… What awaits ahead?