The Meeting that Triggered Broadway’s 8th Longest-Running Musical Next day.   From the moment I describe replacing Henning’s rock-star approach with the sweet-lovable-kid-next-door that he actually is, Stephen’s eyes light up.  It got even better as we shared the impact an over-the-top-and-much-older magician could make during attempts to steal Doug Henning’s illusions from him.  ‘A mad-cap…