Silly and Incoherent Plot, but Natalie Portman and Ashton Kutcher Make the Film Worth

Rating: 7/10 (5 August 2011)

Fifteen years ago, Adam Franklin (Ashton Kutcher) and Emma Kurtzman (Natalie Portman) meet each other in a colony and every now and then they stumble on each other.
In the present days, Emma is an MIT graduated doctor and Adam is the stage assistant of a TV musical show and aspirant screenplay writer. When Adam visits his father Alvin (Kevin Kline), who is a successful TV producer, and finds that his ex-girlfriend Vanessa (Ophelia Lovibond) has moved to Alvin's house and is dating him, he gets totally drunk and calls every girl in his cell phone's contact list. On the next morning, he wakes up at Emma's apartment and they have quick sex. Emma does not want to have any emotional involvement and proposes a relationship driven by sex only without romance or commitment. But love is not possible to be rationalized and the couple is affected by their behavior.
"No Strings Attached" is a romantic comedy with a silly and incoherent plot since the motives for the behavior of Emma are not well developed and she becomes an inconsistent lead character. The story is visibly inspired on the adorable "When Harry Met Sally", with elements of Glee and spiced with sex.
However, the film is cute and the chemistry between the lovely Natalie Portman and the pleasant Ashton Kutcher make the film worth. I believe that a high percentage of viewers love Natalie Portman and it is a pleasure to see this talented actress in any movie.
Kevin Kline has a small part but is also hilarious. This is the first time that I pay attention in Lake Bell and she is really a beautiful woman performing the role of a clumsy and nerd character. However several support characters are neither funny nor interesting. My vote is seven.
Title (Brazil): "Sexo Sem Compromisso" ("Sex Without Commitment")