Parents Guide for
Aguirre, der Zorn Gottes (1972) More at IMDbPro »

A brief scene of a topless nude woman.

Multiple acts of violence by means of blow dart, bow and arrow, gun, and spear.

Two explosions.

A group of men are shown murdered and later a decayed corpse is shown bound.

An assault.

A stabbing.

A man is shown dead from strangulation.

A man is hung.

The Spanish ravage a village.

A man is beheaded.

There is some animal abuse.

Some of the violence is mildly graphic and there is a sense of dread throughout.

Multiple instances of mild profanity. ("damn" "shit")

Two insults. ("idiot")

One derogatory term. ("bitch")

Etc.: Some of the animal abuse, at least against the fish, seems to be real.