Originally published on http://www.cultofmac.com/289915/rediscovered-empire-strikes-back-trailer-features-lost-footage-luke-leia-making/ The San Diego Comic Con has a rich history of giving us our first look at the best upcoming sci-fi movies. Case in point: on August 4th, 1979, Comic Con was where George Lucas showed an excited crowd the very first live-action trailer for The Empire Strikes Back.