Two weeks ago, the big movie studios showcased their 2019 lineups for multiplex executives in a series of elaborate marketing presentations in Las Vegas. It’s an annual ritual: Here are the potential hits we will deliver.

For the first time, the importance of onscreen diversity came across as more than lip service. Paramount presented a family adventure (“Dora the Lost City of Gold”) with a predominantly Latino cast, while Warner Bros. promoted a “Shaft” sequel starring Samuel L. Jackson and Regina Hall. Universal touted a comedy starring black women (“Little”), an animated movie about a Chinese girl’s quest (“Abominable”) and a summer musical (“Yesterday”) with an actor of Indian descent playing the lead.

But look a little closer at the movies on studio rosters — and who is directing them — and Hollywood’s inclusion narrative falls apart by one crucial measure. Even after years of being called to task for sidelining female filmmakers, studios as a whole continue to rely overwhelmingly on men to lead productions.

Why the disconnect?

Studios have multiple explanations (some would say excuses), but one big reason involves a lack of economic pressure. Moviegoers have been responding favorably to diverse casting and stories (“Us,” “Crazy Rich Asians,” “Black Panther”), prompting studios to serve up more. Fewer ticket-buying decisions are made based on the gender of the filmmaker, however.