As movie theater attendance, at long last, begins to rebound, at least part of the newfound success is being attributed to PG films like the Warner Bros. video game adaptation “A Minecraft Movie” ($951 million), Disney’s “Lilo & Stitch” remake ($858 million) and Universal’s live-action “How to Train Your Dragon” ($197 million in its opening weekend). Since January, PG films have earned $1.53 billion, accounting for 41% of the year-to-date revenue. It’s the highest percentage of any rating this year, according to Comscore.
That’s notable because it’s usually PG-13 films that generate the biggest bucks. Since 2000, movies rated PG-13 by the MPA have dominated the box office and often command more than 50% of the total marketshare. Almost all of the most broadly appealing franchise fare — from Marvel to Avatar to Star Wars…