Hellboy / Hellboy 2: The Golden Army

Hellboy: 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 an occult ceremony is taking place, but not before a demon, Hellboy, has already been conjured. Joining the Allied forces, Hellboy eventually grows to adulthood under the supervision of his adopted 'father' Trevor Bruttenholm, serving the cause of good rather than evil.
When the powerful and evil Nazi figure who unleashed Hellboy suddenly reappears in modern times, he discovers that Hellboy is now working as a paranormal investigator at a secret U.S. government agency dedicated to protecting humanity from the forces of darkness. Now, Hellboy must fight to solve the riddle of his own existence and prevent the destruction of mankind...

Hellboy 2: The Golden Army: After an ancient truce existing between humankind and the invisible realm of the fantastic is broken, hell on Earth is ready to erupt. A ruthless leader who treads the world above and the one below defies his bloodline and awakens an unstoppable army of creatures. Now, it's up to the planet's toughest, roughest superhero to battle the merciless dictator and his marauders. He may be red. He may be horned. He may be misunderstood. But when you need the job done right, it's time to call in Hellboy!