You can watch "Hellboy" full movie for free from 123Movies on this page by streaming the movie in the video player above . This movie is produced in USA, released in year 2004. Genres are: Action, Fantasy, Horror, Science Fiction, here is the storyline: In the final days of World War II, the Nazis attempt to use black magic to aid their dying cause. The Allies raid the camp where the ceremony is taking place, but not before a demon – Hellboy – has already been conjured. Joining the Allied forces, Hellboy eventually grows to adulthood, serving the cause of good rather than evil.