"Ok, Future Boy. Who’s the president of the United States in 1985?" “Ronald Reagan.” "Ronald Reagan? The ACTOR? Then who’s Vice-President, Jerry Lewis? I suppose Jane Wyman is the First Lady!" Audiences in 1985 rollicked with laughter at this irresistible jab at then-president Ronald Reagan in Robert Zemeckis’ Back to the Future. The Great Communicator himself was a…