How many movies have Howlin' Wolf and Lightnin' Hopkins acted in together?

They have worked on 2 movies together! Their first movie together was The American Folk Blues Festival 1962-1966, Vol. 2 (2003) while their highest rated movie together was The American Folk Blues Festival: The British Tours 1963-1966 (2007). They have not worked together since The American Folk Blues Festival: The British Tours 1963-1966 (2007).