"With the Star Wars films, we hadn’t really used those types of special effects before. The difference between the first Star Wars – A New Hope (1977) – and the second one, The Empire Strikes Back (1980), was huge. The second was by far the hardest movie I ever worked on. There was so much difficult work in it, whether it was a ship flying through asteroids or making all that imagery readable and understandable. There’s just so much in that movie that was not in the first Star Wars. To the public, it may not be noticeable but to those of us who worked on it everything in that film was a problem. There were two or three times as many shots as the previous film and the deadline was incredibly tight, we barely got it done on time."