According to the the website IDMB pro, Jim Carrey and Cameron Diaz worked together for the movie The Mask, in 1994. The Mask and this new movie are both productions by Focus Features. The Mask was a boost for the careers of both Carrey and Diaz.
A Little Game Without Consequence is the story of a married couple that are living a mundane life, and decide to shake things up when they make their friends believe they have separated. They realize that their friends never believed they were meant to be together.
The movie is being directed by Gabriele Muccino, who directed Will Smith in The Pursuit of Happyness. This movie has not yet been released.
Filming of A Little Game Without Consequence will be starting next month in New York.