In "Duplicity," the major plot twist reveals that the seemingly straightforward corporate espionage and romantic relationship between the protagonists, Claire and Ray, is more complex than it appears. Throughout the film, viewers are led to believe that Claire and Ray are working independently to double-cross their respective companies. However, it is ultimately revealed that they are actually working together to deceive their employers and secure a significant financial gain for themselves, showcasing their true alliance and intentions.

"Duplicity," directed by Tony Gilroy and released in 2009, is generally well-received for its clever screenplay and strong performances, particularly by Julia Roberts and Clive Owen. The film blends elements of romance and corporate espionage, featuring a complex plot with twists and turns that keep viewers engaged. Critics praised its witty dialogue and stylish direction, although some found it convoluted. Overall, if you enjoy smart thrillers with a mix of intrigue and romance, "Duplicity" is worth watching.

"Duplicity" is not based on a true story; it is a fictional film released in 2009, directed by Tony Gilroy. The movie stars Julia Roberts and Clive Owen as two corporate spies who engage in a complex relationship while working for competing companies. The plot revolves around themes of deception, trust, and corporate espionage, but it is entirely a product of the writer's imagination rather than a depiction of real events or individuals.

"Duplicity" was released on March 20, 2009. Julia Roberts was born on October 28, 1967. At the time of the film's release, she was 41 years old.