The comedy film He's Just Not That Into You is based on the self-improvement book of the same name, by Greg Behrendt and Liz Tuccillo.

Jennifer Aniston, Scarlett Johansson, Drew Barrymore, Jennifer Connelly and Ben Affleck star as men and women struggling, in separate but intersecting relationships, in Baltimore, Maryland.

The film's various stories center around the confused Gigi (played by Goodwin), who constantly mistakes the signals she gets from men, and eventually seeks advice from worldly bartender Alex (played by Long). Ben Affleck and Jennifer Aniston play a long-term couple who differ in their views of marriage. Finally, Scarlett Johansson appears as a seductress who comes between a married couple, played by Jennifer Connelly and Bradley Cooper.

• Jennifer Aniston as Beth
• Scarlett Johansson as Anna
• Drew Barrymore as Mary
• Jennifer Connelly as Janine
• Ginnifer Goodwin as Gigi
• Kevin Connolly as Conor
• Ben Affleck as Neil
• Bradley Cooper as Ben
• Justin Long as Alex

The phrase "He's Just Not That Into You" was coined on an episode of Sex and the City, written by comedian Greg Behrendt. After Sex, Behrendt went on to host his own talk show, The Greg Behrendt Show, as well as authoring the books He's Just Not That Into You and It's Called a Breakup Because It's Broken, both with fellow Sex alum Liz Tucillo.

• Amazon.com: He's Just Not That Into You Book