LEGO Batman Movie: 75 Easter Eggs & References You Need To See
63. Batman/Joker Shipping
One of Batman's biggest problems with the Joker's obsession with him is - as he says in his own words - because he does not go if for ships (friendships in this case).
It very much feels like a veiled nod to the odd culture among a certain element of the fanbase who ship Batman and the Joker as a couple, as well as the more academic idea that Joker's validation by Batman suggests a romantic or pseudo-sexual dynamic.
62. Conan's Cameo
Conan O'Brien makes his second cameo appearance in an animated Batman film, voicing The Riddler briefly. He previously voiced David Endochrine in the second part of The Dark Knight Returns in 2013.
61. Red Hood
Perhaps as a nod to the confused backstory of Red Hood, it appears that the film's version of the villain has both the domed red helmet of the Joker's version AND Jason Todd's mask underneath.