From a plot perspective, “Tron: Ares” has almost nothing to do with its predecessor in the “Tron” movie franchise, “Tron: Legacy” — although fans of that 2010 film can hang on for an eventual nod to it.

However, “Ares” — in theaters this week — honors that second sequel to the 1982 science-fiction cult classic “Tron” by offering another big serving of style over substance. As with “Legacy,” the storytelling in “Ares” takes a backseat to its digitally powered visuals. And the bombardment of eye-popping effects is complemented in a meaningful way by top-tier surround-sound work and entrancing music by pioneering industrial rock act Nine Inch Nails.

All of it could have been too much, an exhausting onslaught of empty calories, but Norwegian-born director Joachim Rønning paces the affair wit

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