Laughing Gas is the title of several American short films (1907, 1914 starring Charlie Chaplin, 1915, 1920) whose plot revolves around real or would-be dentists. 1907 Film Plot The plot is that of a black woman going to the dentist for a toothache and being given laughing gas. On her way walking home, and in other situations, she can't stop laughing, and everyone she meets "catches" the laughter from her, including a vendor and police officers. Cast Edward Boulden Mr. La Montte Bertha Regustus ... Mandy Brown Mr. Sullivan 1914 film 1915 film Cast Jimmy Aubrey ... Heinie Walter Kendig ... Louie 1920 film A film directed by Tom Buckingham. References External links American silent short films 1907 films 1915 films 1920 films 1907 short films 1915 short films 1920 short films Films directed by Edwin S. Porter American black-and-white films Silent American comedy films Films directed by Tom Buckingham 1907 comedy films 1915 comedy films 1920 comedy films American comedy short films 1900s American films 1910s American films 1920s American films