The holiday spirit is gripping DVD and Blu-ray Disc buyers. A half-hour “Trolls” holiday special, produced by DreamWorks Animation, came out on DVD only a few days after its Nov. 24 broadcast ...

"The Potion for Stop-Motion," "Travel Through Troll Village," and "Creating Troll Magic" are among the bite-sized featurettes directed at kid-level.

which tracks combined DVD and Blu-ray Disc sales, and NPD’s dedicated Blu-ray Disc Sales chart. NPD research shows the film sold 66% as many units its first week in stores as “Trolls” did in ...