Cindy O'Callaghan played Carrie Rawlins in a 1971 British-American musical fantasy film that was based upon books by who?
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.
i don't know