From Gandalf and Shakespeare to Wonder Woman and Shaq, The Lego Movie ‘s referential humor seemed to know no bounds. When producer Dan Lin sat down with The Hollywood Reporter for the Animator Roundtable, he said it was a big challenge going to rights holders of each individual character and telling them how they were going to “Lego-ize” their properties. Lin also talked about approaching Warner Brothers for permission to include a comical Batman–voiced by Will Arnett–in the animated feature.