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In a new video, the team behind Hellboy broke down the film's use of practical effects. 1 / 6

With prosthetics, makeup and costuming, the team was able to achieve realistic effects. 2 / 6

By coming cutting-edge tech with practical effects, the team put together truly unique visuals. 3 / 6

The team included Academy Award-winning makeup artist Joel Harlow. 4 / 6

With the prosthetics, the filmmakers were able to put together 'good old-fashioned monster fights.' 5 / 6

Directed by Neil Marshall, Hellboy opens on April 12. 6 / 6