Board Thread:Wiki Discussions and Support/@comment-7292165-20141211192509/@comment-1251315-20141216200027

Official is subjective. To many here, official would be whatever has been stated by a manga chapter or a databook. To yourself, official includes the anime directors, whereas they're considered to be unofficial to a lot of manga people.

Considering that, in reality, the only official Naruto medium is the manga -- with the rest being adaptation of Kishi's work -- our arc names are just as official as the filler arcs themselves: which is to say, they're not official either.

I think your taking it a little out of context with films and video games, since the film pages use the official titles for the sake of making it easier for users to actually find the film and not be confused. I still think we should just use our own names and make mention to the official title in the page and have a redirect for the "official title" so people who might just choose to search with an official title (very very unlikely) can find the page...