Gibson’s first trailer doesn’t seem as compelling as the final product. Like the story of the production of “Braveheart’s” Go, Gibson had to remove excessive violence, including Wallace’s cut throat, from the nearly four-hour stretch that should have earned the film an NC-17 rating from the Motion Picture Association (MPA). That said, what remains is not without its brutality. Stirling’s final battle includes some truly savage moments, like swords skewering his torso, axes cracking his skulls, and knives slitting his throat while blood spews out of the camera lens. For most of American cinematic history before “Braveheart,” the violent scene shown would not have been well received, and even today, it’s still a movie that young children shouldn’t see.
“Braveheart” author Randall Wallace (who has no relation to William) comment on violent scenes in the movie and how long it took Gibson to strike the right balance, saying, “I always think of the saying, ‘You never know what is enough, until you know what is too much.’ ” it’s easy to see how ‘Braveheart’ could have held back. The violence scenes are brief, effective, and not too gory. Images of beheading and dissection were selectively avoided. However, when it comes to walking the line of acceptance, the irony is that “Braveheart” is also likely to have pushed it to where it is today.
https://www.slashfilm.com/960874/how-braveheart-tried-to-find-the-right-balance-of-brutality/ How Braveheart tried to find the right balance of brutality