Just about any time the trio shows of their real abilities. Including resealing the Shukaku into Gaara.
Naruto makes it all too clear why he became Rokudaime Hokage after he removes Neji's Caged Bird Seal and forces the Hyuuga Clan with politics into freeing the rest of the Branch House — and he does it during the middle of the final round of the Chunin Exams, in full view of the entire stadium (the audience of which includes several high-ranking nobles and no less than three Kages) ensuring that they can't get out of it.
The 2018 Film:
The film's trailer has gotten immense publicity? How so? The fact that it's the #1 trending video on YouTube and on the top 5 trending topics on Twitter. There's more. It came out of D23, Disney's convection, and yet it managed to gain a lot more talk than Marvel or Star Wars.
The 2nd trailer revealing Miss Which's (or Miss Who or Miss What's) true form. Just a glimpse of her face, but that alone is a beautiful take on the book version. It's absolutely majestic to behold.