Premise: The Coward is a 1915 American silent historical war drama film directed by Reginald Barker and produced by Thomas H. Ince. Ince also wrote the film's story and scenario with C. Gardner Sullivan. The film stars Frank Keenan and Charles Ray. John Gilbert also appears in an uncredited bit part. A copy of "The Coward" is preserved at the Museum of Modern Art.
Hypothesis: The film "The Coward" includes John Gilbert, but was not mentioned in the credits.