For starters, I can’t believe director Denis Villeneuve pulled off the big scene in “Dune: Part Two” in which Timothée Chalamet learns to ride the world’s largest pool noodle. True, the story of “Dune” offers some built-in possibilities for success with such a potentially ridiculous scene. This two-hour, 46-minute continuation of the 2021 “Dune” is the sandiest movie since “Lawrence of Arabia.”…