: The film is based on the novel by Brian Garfield . Academic papers often compare Garfield’s more serious thriller tone with the film’s breezy, comedic adaptation.
: A unique "paper" or study topic is the film's heavy use of Mozart. The book Mozart e il cinema by Enrico Giacovelli (2017) specifically analyzes how the soundtrack functions as a character element for Matthau’s protagonist. Key Facts for Your Research Due sotto il divano (1980)
: A high-quality source for critical analysis is the essay by Bruce Eder for The Criterion Collection. It discusses the film’s status as a "gentlemanly" spy thriller and its subversion of the genre during the Cold War. : The film is based on the novel by Brian Garfield
: Interestingly, the title Due sotto il divano ("Two under the sofa") has no actual relation to the original script; it was a localized choice referring to a deleted or dubbed-over reference to a drinking scene. The book Mozart e il cinema by Enrico
: A veteran CIA agent (Matthau) is demoted by an incompetent boss and decides to publish his memoirs, forcing the world’s intelligence agencies to chase him across Europe.
: Scholars often cite Hopscotch as a pivot from the high-stakes "Bond" style to a more intellectual, cynical comedy. You can find discussions on how it satirizes bureaucracy and the "game" of espionage in spy cinema databases like SpyMovieNavigator .