Hellboy 2 is pretty good. Fantastic CGI, (possibly the best I've ever seen in a movie), fun moments, and good action. The only major problem is the first five minutes or so, where Professor Bruttenholm tells a disturbing-looking Young Hellboy the plot of the rest of the movie.
The movie stars Ron Perlman.
5/5 Ron Perlmans
I was tempted to dock a fractional Ron Perlman for the Young Hellboy sequence, but it wasn't a big deal.