Conversation so far:
What was Star Wars: Episode IV – A New Hope?
Star Wars (retroactively titled Star Wars: Episode IV – A New Hope) is a 1977 American epic space-opera film written and directed by George Lucas.
Was Luke Skywalker in Star Wars: Episode IV – A New Hope?
In Star Wars: Episode IV – A New Hope, Luke Skywalker lives on a moisture farm on the desert planet of Tatooine with his Uncle Owen and Aunt Beru.
Does Luke Skywalker have any children in the film, Star Wars: Episode IV – A New Hope?

Question: Is this a sequel to episode 3?
Self-contained rewrite: Is the film, Star Wars: Episode IV – A New Hope a sequel to Star Wars: Episode III – Revenge of the Sith?