Un monsieur qui a mangé du taureau (Romeo Bosetti, 1909)

The original Un monsieur qui a mangé du taureau belongs to an early French colonial/comic genre, wherein characters eat exotic meals/meats and transform into the animals on their plates.  Here, a dinner of bull meat makes a man into a raging beast.  The toreros of Spain are called and come to the rescue.  In a variation on this theme: a man eats kangaroo meat and must eat French snails to be restored.

In 1935, Eugene Deslaw, the abstract filmmaker (examples here, here, and here) added an introduction and a voiceover by comic sound artist and musician Bétov.  Deslaw recasts the original as a Bétov “retrospective” and reclaims the film for the genealogy of the avant-garde.  The film was restored by the inimitable Lobster Films.