The Thing with Two Heads

The Thing with Two Heads is a 1972 sciencefiction film directed by Lee Frost and written by Wes Bishop. The film stars Rosey Grier, Ray Milland, Don Marshall, Roger Perry, Kathy Baumann, and Chelsea Brown.

Maxwell Kirshner Ray Milland is a dying, wealthy racist who demands that his head be transplanted onto a healthy body. As his health rapidly deteriorates, there remains only one alternative graft Kirshners head onto the body of a black death row inmate named Jack Moss Rosey Grier.

Source: Wikipedia