There is zero sex or nudity in this movie.

A muscular man is shown a couple of times without a shirt. That's about as "nude" as this gets.

There are a number of murders by burning to death. Nothing graphic is shown. A number of heavy fight scenes, but again nothing terribly graphic. Typical "comic book" battle scenes. Likely too violent for family viewing with younger children.

Nothing

Motherfucker, fuck and much more

About 20 uses of the word Fuck

All the language is said in Russian.

Major grom can be creepy to some viewers