Will Zack Snyder Be Invited to Make a ‘Justice League’ Sequel? The Answer Is a Test of Whether Hollywood Still Works (Column)

For 45 years, Hollywood has churned out sequels to more or less any movie that makes a big enough splash at the box office. The rationale has always been simple: The fans want it. Starting in the mid-’70s, with “Jaws” and “Rocky” and “Star Wars,” fan service became the model, the engine, the economic blueprint of the movie business.