Charles Gardner Sullivan was an American screenwriter and film producer. He was a prolific writer with more than 350 films among his credits. In 1924, the magazine Story World selected him on a list of the ten individuals who had contributed the most to the advancement of the motion picture industry from its inception forward. Four of Sullivan's films, The Italian (1915), Civilization (1916), Hell's Hinges (1916), and All Quiet on the Western Front (1930), have been listed in the National Film Registry.

The Italian is a 1915 American silent film feature which tells the story of an Italian gondolier who comes to the United States to make his fortune but instead winds up working as a shoeshiner and experiencing tragedy while living with his wife and child in a tenement on New York's Lower East Side. The film was produced by Thomas H. Ince, directed by Reginald Barker, and co-written by C. Gardner Sullivan and Ince. The film stars stage actor George Beban in the title role as the Italian immigrant, Pietro "Beppo" Donnetti. In 1991, this film was deemed "culturally, historically, or aesthetically significant" by the United States Library of Congress and selected for preservation in the National Film Registry.