"On TV Tokyo earlier today, a brand new special program focused on Road to Ninja: Naruto the Movie was aired. The program featured many guest stars from the Naruto series, including the voice actors for Naruto, Minato, Kushina, and Hinata...."
only 22 min of it is posted so if you want to watch the whole thing without spoilers, I suggest you don't watch it. Not that it would spoil much, unless you happen to speak Japanese.