The deaths last week of Ingmar Bergman and Michelangelo Antonioni highlighted their irrelevance — a marginalization due not only to the passage of time, Ty Burr argues, but to the way we watch movies. “If you wanted to see an old movie three decades ago — and you were lucky enough to live in a big city — you went to a revival theater and joined the worshipers at the altar. … What was once a vibrant communal experience has become a solitary pursuit. As with so many other things in the 21st century, movie history is a Balkanized casualty of an attention-deficit culture.”