Friend of mine shared an interesting 31 minutes video at social media through http://doraemon.mangawiki.org/, check it out.
2112: The Birth of Doraemon (ドラえもんの誕生) is a movie about the life of Doraemon from birth, before coming to Nobita. The movie is sort of a prequel to the entire series, it showed the life of Doraemon before traveling to the 20th century: How he was made, how he was partially broken, how he lost his ears, how he met the Nobi family and decides to return to the past to help Nobita. Doraemon: Nobita’s Genesis Diary was screened at the same time of year. The original movie was made in order to understand the initial setup of the Doraemon Manga.
This work incidentally is also a piece that appeared last back hyperspace second generation Time Machine had been a favorite for many years (or in relation to time made in the diary Genesis Simultaneous screening of second generation 3 CG has been used specifications) .