With a runtime of 162 minutes, it is the longest theatrical animated feature ever produced, but the third longest animated feature overall. After the extended version of Uchû senkan Yamato: Kanketsuhen (1983) with 163 minutes and the extended version of In This Corner (and Other Corners) of the World (2016) with 168 minutes.
This films is 162 minutes long, the equivalent of 7 episodes of the TV-series.