IT is the moment a good film turns into a great film . . . That second where you choke on your popcorn in shock, awe or laughter. And now the most epic moment on the big screen in the past 50 years has been voted by 2,000 film fans, with Darth Vader’s “I am your father” being crowned the favourite of all time. The plot twist from The Empire Strikes Back claimed the top spot, narrowly beating Jack’s “I’m king of the world!” moment in Titanic. With Alien’s graphic chest-bursting scene, the harrowing Normandy D-Day beach landing in Saving...