Hopscotch is a 1980 comedy directed by Ronald Neame and based on a novel of the same name by Brian Garfield. When CIA agent Miles Kendig (Walter Matthau) is tasked with the mission of bringing in a German spy, he fails to achieve his goal. The CIA decides to force him to take a desk job after his blunder, but Kendig is so angry at the intended demotion that he quits. He soon decides to get revenge on all of the spy agencies in the world by releasing a book about the secrets. Although his best friend, Isobel Von Schonenberg (Jackson), warns him not to do it, Kendig writes the first chapter and sends it to spy chiefs all over the world. Predictably, the chiefs do not want their secrets revealed, so they send agents to apprehend Kendig. As he is chased by international spies, witty Kendig hatches plots to evade their clutches.