The idea of recasting the little fairy-tale characters as action heroes is so silly it might have worked had it been played for laughs, but director and cowriter Tommy Wirkola (best known for the “Nazi zombie” flick Dead Snow) just uses it as a pretext for fight scenes in the fashion of video games. There isn’t much to this beyond the poorly staged, rapidly edited violence; the witches, all but devoid of backstory, are basically canvasses for cartoon splatter. As the title characters, the typically likable Jeremy Renner and Gemma Arterton (Tamara Drewe) have little to do besides flex their muscles and recite Schwarzenegger-level one-liners. With Famke Janssen and Peter Stormare.