Mormon Historical Movie: The Heavens are Open

This is a Church produced movie in 1988.  It depicts the coming forth of the Doctrine and Covenants.  It explains where many of the revelations originate including:
The preface given by the Lord through revelation; the restoration of the Priesthood to Joseph Smith and Oliver Cowdery; many revelations given in Kirtland, the appearance of the Lord to Joseph Smith and Sidney Rigdon; the vision in the Kirtland Temple given to Joseph Smith and Oliver Cowdery; revelation given to Joseph Smith at Liberty Jail; revelations given at Nauvoo; and finally the chapter written by John Taylor detailing the life and martrydom of Joseph Smith.  The Doctrine and Covenants is an important work for our day, containing revelations for our day.