The Hope Diamond Mystery

The Hope Diamond Mystery is a 1921 American action film serial directed by Stuart Paton and featuring Boris Karloff. The film survives with a copy at the Library of Congress.

Loosely based on Lady Francis Hopes book The Mystery of the Hope Diamond, the story is told in two eras in 16th century Burma, Tavanier, a French adventurer, steals the diamond from its place on an idol in the Temple of Sita, and the High Priest of the temple Boris Karloff swears vengeance and puts a curse upon the jewel. In 20th century London, a highclass crook with hypnotic powers called Sidney Atherton masquerades as an Asian crimelord to try to steal it. He tries to mindcontrol Mary Hilton, secretary to rich collector Marcon, in order to accomplish his goal, and John Gregge, a criminologist, and Dakar, the apparent reincarnation of the High Priest, try to stop him and return the jewel to its proper owner. After several ambushes by Nang Fus gang at Marcons home and elsewhere, Gregge, Mary, and Dakar are taken prisoner on a ship by Atherton, but escape and the plot is resolved as the cast members meet in final conflict on a rocky beach.This serial was shot on the Universal Pictures lot and a custom set, the Temple of Sita, which reportedly cost 100,000 to build, and was Boris Karloffs first major film role. A blue color tint was used on title cards in the serial with an illustration of the diamond in the background, and legend has it that additional special color effects may have been incorporated into other scenes showing the diamond as well, though no evidence of such remains in the existing print of the film. Color effects have been retained in the 2014 restoration of the serial by Eric Stedman of the Serial Squadron. May Yohe appears as herself in episode opening and closings. ........

Source: Wikipedia