One of the most popular (and arguably one of the best) anime series ever produced, Neon Genesis Evangelion is set in 2015, 15 years after what's believed to be a meteorite struck Antarctica, wiping out half of Earth's population and leaving the rest to contend with rising sea levels and a strange alien race known as the Angels.
The End of Evangelion (新世紀エヴァンゲリオン劇場版 Air/まごころを、君に) is a 1997 Japanese animated film written and directed by Hideaki Anno along with Kazuya Tsurumaki; it can be regarded as the alternate ending for the NGE series.
Shin Seiki Evangerion Gekijō-ban: Air/Magokoro o, Kimi ni won both the Animage Anime Grand Prix prize for 1997 and the Japan Academy Prize for "Biggest Public Sensation of the Year"; EX.org ranked the film in 1.