Question: Michael Anderson and Derek Estlin Purvis are both what?
Sentence (from "Michael Anderson (director)"): Michael Joseph Anderson, Sr. (born 30 January 1920) is an English film director, best known for directing the Second World War film "The Dam Busters" (1955), the epic "Around the World in 80 Days" (1956) and the dystopian sci-fi film "Logan's Run" (1976).
Relevant evidence: Yes