http://www.brevestoriadelcinema.org/storia-del-cinema/04-gli-anni-venti/04-6-il-cinema-comico-degli-anni-venti/
The Frozen North is a 1922 American short comedy film directed by and starring Buster Keaton. The film is a parody of early western films, especially those of William S. Hart. The film was written by Keaton and Edward F. Cline (credited as Eddie Cline). The film runs for around 17 minutes. Sybil Seely and Bonnie Hill co-star in the film.
The film followed Roscoe Arbuckle's arrest for the rape and manslaughter of actress Virginia Rappe. While studio executives ordered Arbuckle's industry friends and fellow actors (whose careers they controlled) not to publicly speak up for him, Keaton did make a public statement in support of Arbuckle's innocence. However, William S. Hart, who had never met or worked with Arbuckle, made a number of damaging public statements in which he presumed that Arbuckle was guilty. Arbuckle later wrote a premise for a film parodying Hart as a thief, bully and wife beater which Keaton purchased from him. Hart was widely believed in the industry to be "prone to domestic violence" and Keaton believed that Hart was helping to convict Arbuckle. Keaton produced, directed and starred in The Frozen North, the film that resulted.
https://en.wikipedia.org/wiki/The_Frozen_North