First Born (1988)

First Born begins in 1975, with Edward Forester (Charles Dance) and his wife Ann (Julie Peasgood), who is days away from giving birth. Cut to the delivery theatre, and a baby boy is born, only out of the ordinary by having an unusual amount of body hair. But then the mother goes into convulsions, and a large hairy arm is seen: the mother is a gorilla called Mary. Edward Forester has succeeded in producing the first hybrid of primate and human, a boy he calls Gordon, or Gor for short.

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