By Michael O’Sullivan, The Washington Post Legos were invented in 1949. The character of Batman, 10 years before that. “The Lego Movie” (2014) and this year’s “The Lego Batman Movie” riffed brilliantly on those storied histories — simultaneously mocking and honoring pop subcultures that have grown organically around millions of acts of individual imagination spurred on, in the first case, by building blocks, and in the second case, by comic books, TV shows, movies and, eventually, Batman-themed Lego minifigs (or minifigures) and construction sets. These were movies that could be — and that were — enjoyed by adults as well as children. “The Lego Ninjago Movie,” on the other hand, is based on a line of Lego building sets that debuted – along with a TV series that was little more than glorified commercials for those toys — in 2011.