Parents need to know that Hellboy is a 2004 superhero movie in which the titular character must do battle against a demonic force that has reemerged. The movie contains frightening images, a dark and at times macabre tone, and the sad death of a central character. There's a great deal of violence in the fight scenes, which are at times bloody, and characters must wrestle with the deadly consequences of their actions. A scary character is addicted to self-surgery, while one of the creatures summoned by the Nazis is a hell-hound that will frighten younger audiences. Several characters (including one major character) die violent deaths. The inability of one of the characters to control her powers causes the off-screen death of innocents, which might frighten even the most mature of audiences. This same character is shown as a child being bullied; she is hit with rocks and taunted before she's knocked to the ground and uses her superpower to get revenge. One character is stabbed to death repeatedly. Another is impaled. Cigar smoking throughout. Some product placement. Kissing. Infrequent profanity: "crap,'" "hell," "goddamn."