Rebecca Rubin Film and Media ReporterAfter “Dune,” the upcoming cinematic retelling of Frank Herbert’s landmark 1965 sci-fi novel, had its world premiere at Venice Film Festival, critics — even those who weren’t particularly enthused about the movie — made a point of saying the striking visuals demanded to be seen on the big screen.The reason that so many chose to emphasize the benefit of watching the movie in theaters is because “Dune,” like every 2021 Warner Bros.