The extraordinary and sensational story of how Charles and Diana Ingram attempted an ‘audacious heist’ on the quiz show Who Wants to Be a Millionaire? is to be told in a three-part drama, Quiz announced ITV and AMC today. Major Ingram, his wife Diana and an accomplice, Tecwen Whittock, who was sitting in the audience, were accused of cheating their way to a million pounds on what was, the most popular game show on earth in 2001.   The…