seated on a plane beside each other 5 years later

During their travel from Chicago to New York, Harry and Sally debate whether or not sex ruins a friendship between a man and a woman. Eleven years later, and they're still no closer to finding the answer.

Dylan is done with relationships. Jamie decides to stop buying into the Hollywood clichés of true love. When the two become friends they decide to try something new and take advantage of their mutual attraction - but without any emotional attachment.

Revolving around a group of twentysomething singles as they navigate the difficult, sometimes rewarding, often confusing world of dating. Loyal and devoted to one another, these friends are never too busy to help a member of the group who might be in need. In fact, their companionship often extends into a more intimate setting - the bedroom.

Tom, greeting-card writer and hopeless romantic, is caught completely off-guard when his girlfriend, Summer, suddenly dumps him. He reflects on their 500 days together to try to figure out where their love affair went sour, and in doing so, Tom rediscovers his true passions in life.

Eight London couples try to deal with their relationships in different ways. Their tryst with love makes them discover how complicated relationships can be.

It tells a variety of stories about love that has gone wrong: a brother and sister in an illicit relationship, a married painter who falls in love with his young male life model, a dance school teacher who is besotted with his senior student, and a lesbian couple, one of whom has role-play paranoia, and is caught in a complex love triangle.

Cal Weaver is living the American dream. He has a good job, a beautiful house, great children and a beautiful wife, named Emily. Cal's seemingly perfect life unravels, however, when he learns that Emily has been unfaithful and wants a divorce. Over 40 and suddenly single, Cal is adrift in the fickle world of dating. Enter, Jacob Palmer, a self-styled player who takes Cal under his wing and teaches him how to be a hit with the ladies.