20 Best Easter Eggs In 2016 Movies

As Red (Jason Sudekis) and the other birds infiltrate the pigs' compound, Red opens a door which contains two pigs in dresses, chanting "Redrum!", causing a disturbed Red to quickly close the door and move on.

It's a clear tip of the hat to Stanley Kubrick's unforgettable horror masterpiece The Shining, and while incredibly blatant for adults, will gracefully fly over the heads of kids, who will no doubt be left clueless by the brief gag.

Sadly the PG rating couldn't quite accommodate an elevator full of blood, apparently, so you'll have to make do with this hilarious and unsettling flourish instead.