LEGO Batman Movie: 75 Easter Eggs & References You Need To See

12. The Visual Sound Effects

During Batman and Robin's battle with the Joker and his underlings on Wayne Island, they adopt the campy visual sound effects that were such an iconic part of the 1960s TV series and Batman movie. It's a lovely touch.

11. The Iceberg Lounge

In the background of Gotham, famous landmark The Iceberg Lounge can be spotted, which was of course the lair of The Penguin.

10. Ferris Air

Aviation company Ferris Air is mentioned a couple of times in the film: first a plane is spotted, and then there's an advert for the same company.

The company is also the one that employs Hal Jordan before he goes on to become Green Lantern, and it also appears in the Arrow and The Flash TV shows.