Just Jaeckin was a French film director known for his soft porn films during what is known as the golden age of porn in the 1970s.
He directed Emmanuelle (1974), Story of O (1975) and Lady Chatterley’s Lover (1981).
His film adaptation of Lady Chatterley was produced by Cannon, the story of which is told in Electric Boogaloo: The Wild, Untold Story of Cannon Films (2014).
He can be seen in that documentary from 17:10 for a minute or two.
The story of Cannon is interesting, the docu well made.