Another of my favorites from 1973, a British television production titled Frankenstein: The True Story. I saw it multiple times on television in the 1970's and 1980's, it generally was serialized in two parts, 2 hours (with commercials) each night for 2 nights. The "true story" part comes from its attempt to tell the original story of Mary Wollstonecraft Shelley in her initial novel, before the classic Hollywood-ization of the story in the 1931 Boris Karloff film and subsequent movies. Although this production likewise takes liberties with Shelley's novel, and I think is more interesting for it.
With guest performances by James Mason, David McCallum, Tom Baker, Agnes Moorehead, and most noteworthy of all for me, Jane Seymour, in her second major role, after her breakout performance in Live and Let Die. This version is as elegant as it is horrific, and also with compassionate human element between creator and monster.
