Take any action movie and really focus on those kills, especially when it’s with melee weapons instead on guns. Don’t even need to go full splatter movie, just actually show the violence that’s happening in great detail and with maybe some amount of realism (people rarely die in one blow, and bladed weapons can get stuck in bodies)(obviously that doesn’t work as well for sci-fi and superhero movies). There are going to be a lot of turned stomachs.

A lot of spy movies, just don’t fade to black when there’s torture.