Combine facts and answer this: Choices of One is a "Star Wars" novel written by Timothy Zahn, released by Del Rey Books on July 19, 2011, the sequel to Zahn's 2007 novel "Allegiance", it is set between the events of the films, "Star Wars: A New Hope" and "The Empire Strikes Back", Star Wars: Episode IV A New Hope, is an American epic space opera film written and directed by George Lucas, released in which year?
The answer to this question is:
1977