Breh, this summer's failure is easy to break down. You just have to look back at the summers of years past for the formula.
First, these studios are trying to stuff damn near every movie into the summer window to force success. It creates a situation where damn near every movie out on a weekend is some studio's shot at a summer hit. Inevitably, these movies end up killing each other's audience. We gotta space these out a little bit.
Secondly, not every movie is a summer type movie. Typically, action/sci-fi/disaster/kid movies own that space, with the occasional R-rated comedy getting some shine. These nikkas out here tossing biopics, shytty YA adaptations, and generic comedies out like they're going to miraculously take off. It's possible for that to work (counter programming has created some hits), but it's a strategy that requires a lot of actual effort to pull off.
Third, the days of people going to see a movie just because a particular actor is the star came and went a long time ago. People aren't willing to go see a movie they suspect or know is shytty just because running Tom is running in that shyt anymore.
Fourth, these studios need to stop half passing advertising on some of these movies. I spent the entire summer stuck in a loop where I would look up Sin City's release date, forget about it because I hadn't seen or heard anything for a minute, then looking that shyt up again because I forgot. I still haven't seen the movie. With every movie being pushed as a blockbuster event, you can't expect a movie (especially a sequel damn near 10 years in the making that nobody was really demanding) to hit without raising awareness.
And then there's the obvious: make a decent fukking movie. People aren't about to drop damn near $15 per person in most cases to go see a movie that they know is bad, or someone else has told them is bad.
It's really not that hard.
But, since studios are lazy, they'll do something dumb like try to copy marvel till they catch a brick