Lost for some 50 years after its cinema screenings until a copy turned up in a Belgian archive in 1974.
Duck Soup is American slang for something that is easy to do.
Stan Laurel originally cast a Roach company stock player named Syd Crossley to play Oliver Hardy's part. For unknown reasons, Crossley failed to make the transition from script to screen.
The film was based on a sketch 'Home From the Honeymoon' written by Stan's father and was also the basis for the Boys' film 'Another Fine Mess.'
The title was later used for a Marx Brothers film (1933) and an Edgar Kennedy short (1942)