Hellboy can be seen without a shirt in some parts of the movie, this is not meant to be sexual in any way.

Female nudity briefly shown is part of side breast.

A man's hand is smashed by a car zooming past him

A woman hits a man in the faces with a hammer, knocking him over. Some blood shown.

PG-13 violence type: blood and gore.

A man is killed and his body falls onto a pattern etched into the ground. His blood pours through the pattern and pools in the center. Another man rises from this pool.

This movie contains moderate violence including the use of weapons such as guns, knives, swords, grenades, spikes, and blunt objects.

Sci-fi monsters are seen throughout the movie attacking and sometimes eating their victims--however, the camera usually cuts away from the scene.

Blood and gore are frequently displayed, although primarily coming from the sci-fi monsters.

There is a man on an operating table with deep scars across his entire body, and his lower lip is gone. His eyelids are gone as well. We see that the secondary hero is totally bleeding from his face, and he is lame. The battle between Hellboy and Samael is very violent, with Hellboy is bleeding.

A number of occurrences of 'God'/'Jesus'.

2 use of ass. A couple uses of crap, damn and hell. One use of God damn

A character is seen stealing beer from a couple.

Cigars (and possibly cigarettes) were smoked in scenes by the main character and supporting cast members.

The main villain seems frightening

The film is very dark, with lots of scary scenes and appearances.

The sci-fi monsters sometimes appear unexpectedly, and could be considered very frightening.

A building is engulfed in a fire.

A man that is missing his lower lip and deep scars and most parts of his body with no blood or eye lids lies on a table and gets up suddenly and puts a clock mechanism into his chest.

One of the Sammaels is seen eating an agent's head from a distance.

Hellboy breaks into a grave and reanimates a skeleton without legs.