Check out two trailers (endings are different) released at Comic-Con for The LEGO Batman movie.
LEGO Batman has a February 10, 2017 release directed by Chris McKays starring Will Arnett as Batman, Zach Galifianakis as Joker, Michael Cera as Robin, Ralph Fiennes as Alfred, Rosario Dawson as Batgirl and Mariah Carey as the Mayor.