Maybe the scene with Zed and so on is what made said that it was a violent movie ! Because I agree that there is a lot of violent scenes which are off-screen. Same pb for RD : teh torture scene is almost off-screen : we don’t when he cuts the hears (but OK we see the hears then in his hand)…
The movie isn’t that much violent, but the sensation of violenc eis very present, that’s why the people think it’s violent, because they feel it.
