I went to see a screening of Evil Dead II where Bruce Campbell spoke and he gave some good insight into how movies get made.
Who on the Earth would make Congo? It's a journey made in small steps.
For the most part, Hollywood studios don't want to tell good stories. They want to make money. They view these things as vehicles to make money.
Even Miramax, often thought of as the company that made big budget films in the 90s (when not thought of as the home of the predatory film producer Harvey Weinstein), was really in the business of making money, not cinematic experiences.
So, how do you make a movie? Well, you don't have the film in front of you. So you have to look at who's making the movie. Think of these creative people like ingredients in a cake that you've never tasted.
The author of Jurassic Park.
And that's how you get to the final product that might stink despite the pedigree. Or as Campbell shouted at the crowd, "Congrats you just made Congo!"
William Goldman also talks about this with his movie about wine and Last Action Hero.