Name the British-American musical fantasy film produced by Walt Disney Productions based upon the book 'How to Become a Witch in Ten Easy Lessons' which features the fraudulent magician Professor Emelius Browne who was played by David Tomlinson the English actor and comedian?
David Tomlinson: David Cecil MacAlister Tomlinson (7 May 1917 – 24 June 2000) was an English stage, film and television actor and comedian. Bedknobs and Broomsticks: Bedknobs and Broomsticks is a 1971 British-American musical fantasy film produced by Walt Disney Productions and released by Buena Vista Distribution Company in North America on December 13, 1971.
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