Since LAIKA founded in 2003, the Portland-based animation company has married stop-motion animation with computer-generated wizardry to produce two of the celebrated animated films of the past decade, "Coraline" and "ParaNorman." The studio is back this Friday with their third and most ambitious effort to date, "The Boxtrolls," a 3-D wonder based on the book "Here Be Monsters!" by Alan Snow.