veryrarelystable | Weirdly specific sets with more than one member

Film directors who created classic original science fiction films in the 1970s which were then raised to further heights by other directors, then returned decades later to make CGI-heavy prequels which demonstrated they had no idea where the appeal of their own franchises came from.
= George Lucas (Star Wars); Ridley Scott (Alien)
Scottish actors who have played the young versions of benevolent elderly mentor characters with powers of mental manipulation originally played by English actors in science fiction films, and have also played the adult versions of American child characters who survive a close brush with supernatural evil in horror film sequels based on Steven King novels.
= James McAvoy (Charles Xavier in several X-Men installments, first played by Patrick Stewart, and Bill Denbrough in It Chapter Two, sequel to It); Ewan MacGregor (Obi-Wan Kenobi in the Star Wars prequels, first played by Alec Guinness, and Danny Torrance in Doctor Sleep, sequel to The Shining)