This consists of interviews with the cast and crew, all of whom have something compelling to add within their area of expertise(and there is a very clear love of what they're working on), clips from the subject, behind-the-scenes footage, and incomplete effects shots.
It's 7 and a half minutes long. This is found on Disney+.
They talk about working with Taika Waititi. His many quirks. Numerous talents. That coming from making indies, he has familiarity with every element of filmmaking, and gets involved with all of them, despite the much larger scope here. We see some great (presumably ad-libbed) bits that didn't make it into the actual movie.
I recommend this to any fan of Thor Ragnarok. 8/10.