All the killing, and there is a lot of it, is graphic, including an Indian attack that begins as has no other Indian attack in the history of the cinema. In JJ, there’s considerable humor, a lovable codger, a sidekick of sorts, and plenty of memorable dialog. In Revenant, nearly everyone is treacherous, half-crazy, terrified, murderous, or all of them. There’s not a scrap of humor. The characters speak in French, Arikara, or authentic Mountain Man Gibberish. I was unable to understand a good deal of it, hearing aids notwithstanding, but you may do better, and you don’t really need to follow the dialog anyway.