Zack Sharf Digital News Director Denis Villeneuve’s “Dune: Part Two” notably features the acting return of Christoper Walken, who hasn’t been seen on the big screen in four years. The Oscar winner had a trio of films released in 2020 (“The War with Grandpa,” “Percy” and “Wild Mountain Thyme”) and then went on a hiatus from moviemaking (he did show up in the 2022 television series “Severance.”) Now, he joins “Dune: Part Two” as Shaddam IV, aka the Padishah Emperor of the Known Universe. Why did Walken decide to make “Dune: Part Two” his comeback? It’s a question Vanity Fair asked the Oscar winner in a new interview, to which Walken responded: “I had, of course, seen the first ‘Dune’ a number of times.