Question: Who directed a 1971 American musical fantasy film staring Paris Themmen?
Sentence (from "Bedknobs and Broomsticks"): It is based upon the books "The Magic Bedknob; or, How to Become a Witch in Ten Easy Lessons" (1943) and "Bonfires and Broomsticks" (1945) by English children's author Mary Norton.
Relevant evidence: No