With budgets for studio blockbusters getting higher and higher, the amount of risk being put into these projects becomes lower and lower. If you're spending $200m on a single movie, then obviously you'd be much more inclined to play it safe and maximize the potential audience appeal.
However, that's resulted in a sense of uniformity surrounding the vast majority of Hollywood's tent-pole releases, with mediocrity and solid box office the largely-accepted norm, with very few filmmakers working in this particular sandbox willing to attempt anything fresh or exciting.
Obviously, with hundreds of millions of dollars at stake, the margins between success and failure can often be career-defining, and sometimes a movie comes along that fails so badly that it creates a knock-on effect that has consequences for other projects, which might not even be in the same genre or hail from the same studio.
There's been plenty of times when a lot of people have found themselves out a job thanks to the success or failure of a movie that they never even had anything to do with, with the fickle nature of the movie business causing the executives in the boardroom to panic and scrap something just on the off-chance that it suffers a similar fate.
I don't do social media, so like or follow me in person but please maintain a safe distance or the authorities will be notified. Don't snap me though, I'll probably break. I was once labelled a misogynist on this very site in a twenty paragraph-long rant for daring to speak ill of the Twilight franchise. I stand by what I said, it's crap.