The eight best nostalgic Easter eggs in 'The Lego Batman Movie

The film's best knowing nods to Batman and DC superhero lore.

The LEGO Batman Movie (2017) - Harley Quinn is seen wearing a shirt that reads 'Smylex.' Smylex was the name of the poison used by Joker to poison products in the movie

The LEGO Batman Movie Easter Eggs and References

The eight best nostalgic Easter eggs in 'The Lego Batman Movie' - The Washington Post

17 Times Censors Fell Asleep During Lego Batman

Holy Easter Eggs! How 'The Lego Batman Movie' Celebrates the Caped Crusader's Big-Screen History

Siri's latest Easter egg lets you become 'Lego Batman

Beginning of Lego Batman features Joker hijacking a McGuffin Airlines plane. McGuffin is an object or device in a movie that serves merely as a trigger for the plot. : r/MovieDetails

The LEGO Batman Movie - The Unofficial Totally Dope Easter Eggs Guide - Movie Reelist

There's a Fun LEGO BATMAN MOVIE Easter Egg on Your iPhone — Nerdist

Review: LEGO Batman Movie Minifigures Series 2 - Jay's Brick Blog