Third Reich is joined together with the demonic Grigori Rasputin who used his dark magic to conjure a devil Hellboy so he can used as an Axis weapon. Circumstances change when he gets seized by the American forces, where he grows up to be an adult totally transformed to be the good guy
Ron Perlman, performing under a massive ember-red suit... is perfect as the cigar-puffing, wisecracking, kitten-loving demon who covertly battles supernatural monsters.
Del Toro, in love with his source but never overawed by it, keeps things moving; Perlman ties it together with some of the driest witticisms this side of Indiana Jones. Like we said: fun.
When the movie's story line concentrates on the character of Hellboy and his relationships with those important to him, the film becomes a unique romp, with an exciting yet vulnerable superhero at the center who just happens to be the spawn of Satan.