When it comes to making movies, studios spend a massive amount of money promoting them. This can often be as much as the film costs to produce, and it's usually a wise investment. After all, when a movie underperforms, all of that money is wasted, and studios can lose millions.
That's how things normally work, but every so often, studios do something different, and they either fail to properly promote a movie — or worse. Studio interference can cause delays in production, and more often than not, it ends up derailing the film completely. Just look at the DCEU as an example.
When a studio sends out a movie it knows isn't going to perform well, it rarely succeeds. If the studio has lost faith in a film, odds are, it's going to put it out to try and recover whatever money it can possibly receive, and move on to the next project.
It happens more often than people realize, and lately, it's becoming a relatively common practice. There are tons of recent examples of movies studios sent out to die in 2019 and 2020, and that's pretty much what happened to these ten films.