How many movies have Glenda Jackson and Mark Jones acted in together?

They have worked on 2 movies together! Their first movie together was The Persecution and Assassination of Jean-Paul Marat as Performed by the Inmates of the Asylum of Charenton Under the Direction of the Marquis de Sade (1967) while their highest rated movie together was Tell Me Lies (1968). They have not worked together since Tell Me Lies (1968).