“Dune: Part Two” (*** out of four) was a grand, operatically scaled sequel about the continuing saga of Paul Atreides (Timothee Chalamet) who unites with Chani (Zendaya) and the leader of the Fremen tribe (Javier Bardem) to swear vengeance against the various conspirators (Christopher Walken, Stellan Skarsgard, and others) who destroyed his family. Elegantly and intelligently directed by Denis Villeneuve with some breathtaking cinematography by Greig Fraser and sumptuous visual effects but marred by a midsection that plods. Still, an overall solid achievement and an improvement over the previous entry and David Lynch’s disastrous 1984 adaptation.