The Grand Passion is a 1918 American silent Western film directed by Ida May Park and starring Dorothy Phillips, Jack Mulhall, and Lon Chaney. Ida May Park also wrote the screenplay, based on a novel The Boss of Powderville by Thomas Addison. The film was allegedly shown in some theaters under the title of The Boss of Powderville.Jack Mulhall later co-starred again with Lon Chaney in Danger - Go Slow (1918) and Flesh and Blood (1922). Some sources claim the film's running time was closer to an hour, but we'll never know because it is considered a lost film. A still from the film exists showing Lon Chaney being strangled by members of a mob.The distributor suggested a strange publicity stunt to advertise the film, explaining to exhibitors "Send an auto through the streets with a woman and two evil looking men; the woman should have her head muffled, and be forcibly restrained from jumping out. And on the back of the car have a sign, "For the reason for this abduction see THE GRAND PASSION at the ____________ theatre today.".