There is a moment in “Star Wars: A New Hope” when Luke Skywalker has been knocked out. R2-D2 is hiding, and all seems lost … until a figure in a brown monk-style robe appears and pulls back his hood to say, “Hello there.” It was, of course, Obi-Wan Kenobi. He’s comforting, wise, and unassuming in his robe. That robe is later left as the only remaining evidence of his existence after his fight with Darth Vader. It’s a piece of movie and sci-fi history, yet somehow it was lost for years.