新世紀エヴァンゲリオン劇場版 Air／まごころを、君に
"The fate of destruction is also the joy of rebirth."
Neon Genesis Evangelion: The End of Evangelion - Easter Eggs & Hidden Details
Easter Eggs
In one of the live-action shots shown during the Third Impact sequence, three women dressed to look like Rei, Asuka, and Misato can be seen walking away from the camera in a crowd.
This is a subtle nod to the animated characters existing within the 'real world' context that the live-action sequence introduces, blurring the lines between the film's fiction and the audience's reality.
A computer file Misato views, which is supposed to reveal the truth of the Second Impact, is actually just a short biography of the animation studio Gainax and its films.
This is a small, self-referential joke by the production staff, replacing a key piece of in-world lore with information about the studio that created the film.
The red dummy plugs for the Mass Production Evangelion series are all labeled with the name "Kaworu."
This implies that the dummy plugs are based on the thought patterns of Kaworu Nagisa, the final Angel who Shinji was forced to kill. This makes the Mass Production Evas' brutal assault on Asuka even more psychologically horrific for Shinji, as they are extensions of the one person who showed him unconditional love.