No Strings Attached

In this comedy , Emma(Natalie Portman) and Adam (Ashton Kutcher) are life-long friends who almost ruin everything by having sex one morning. It happened just so naturally. In order to protect their friendship , they make a pact to keep their relationship strictly " no strings attached"

"No strings" means no jealously , no expectation and don't fall in love.

I think they probably would have fallen in love even before they have sex or maybe they fall in love after having sex.

Sex is personal. In real life , you probably want no strings attached, but it is just impossible to achieve.

Adam's own father (Kevin Kline)has stolen away his former girlfriend(opehlia Lovibond) and he just couldn't accept this fact. He wanted to find a sex partner and to release his frustruction. He drank so much and past out. He managed to have sex with Emma in her room when he is sober.

There is one part showing Emma went to a party on the eve of her father’s funeral probably to recover from the pain of losing her father. In the Eastern societies, especially for those who subscribed to the Chinese way of thinking, this would not happen. People would be guarding the soul and would be near the coffin because the Chinese believed the soul is still around and they hoped that person inside the coffin might just come alive. Even the person cannot re-live, they would want to be on guard with the soul to pay their last respect.