Lego shouldn’t be popular anymore. The Danish building blocks were groundbreaking playthings in 1949, but in days when toddlers are picking up iPads, they should be passé. Yet, Lego’s probably more popular than ever. There are a number of reasons why: nostalgia, simplicity, cross-marketing in videogames/playsets, and most importantly the fact that those little plastic cubes that you constantly step on at the worst possible moment open up a child’s imagination through building like few other toys. As Lego continues its age-bridging, cross-cultural assault through videogames and Star Wars/Batman/Marvel/everything themed playsets, it was inevitable that someday a Lego movie would exist. It’s just too easy to sell to family audiences, amateur stop-motion Lego movies have been made for decades now, and Lego’s multiplatform franchise is made for merchandising.