Humor Risk (lost silent Marx Brothers film; 1921)
From The Lost Media Wiki
One of the few surviving production stills from the film.
Status: Lost
Humor Risk, (aka Humorisk) was the silent 1921 film debut of the Marx Brothers. The film was only shown once and received confused/mixed reviews. Groucho Marx was reportedly so ashamed of the film that he destroyed the only copy, although many have disputed this claim.
There are no surviving stills and very little is known about the plot. This is also the only missing Marx Brothers film.