Studio executives have a simple formula for R-rated movies. If an R-rated movie is good, wouldn't it be better if 13-years-olds could pay to see it too? And therefore make several million dollars more? This theory pans out at the box office where PG tends to rake in more cash than R, which means we'll sacrifice story quality for fuzzy good-time feelings if it means a studio executive can add a second floor to his yacht.
20th Century Fox
"Kids these days won't even know what a 'motherfucker' is, Bruce."
Now, this isn't to say PG-13 movies suck. You can make a decent PG-13 horror or action movie; a good script is a good script regardless of excess gore and sex and swearing, but taking a good script that's maybe about horrible things, like gore and death and madness, and trying to make it cool for eighth-graders, that's maybe a problem.
If I have to see Superman get shuttlecocked away from Krypton or Peter Parker get bitten by that goddamn spider one more time, I may start hurling feces at a movie screen like some kind of proto-ape Roger Ebert. Remaking or rebooting a movie does not necessarily mean just filming the same piece of shit a second time. Or third time, as the case may be.
If anyone on Earth does not know Superman's origin story, I submit that they are not allowed to go to the movies to watch a Superman film. And if they do, and if they don't "get it," then management retains the right to doodle "fuck you" on their ticket stub and kick them out. Everyone knows where Superman came from, skip that part of his goddamn movie. Same with Spider-Man, Batman, Captain Kirk, Peter Pan, and the Teenage Mutant Ninja Turtles.
Their name tells you their fucking origin.