Following George Lucas' revelation from earlier today that he won't have a huge role on Star Wars: Episode VII, we have the fourth in a series of video interviews with George Lucas and LucasFilm co-chairman Kathleen Kennedy about the future of the franchise. The latest installment in this series includes discussion about why the movies have remained so popular over the past 35 years. If you want to catch up, or just watch them again, we also have the first three video interviews for your viewing pleasure.