Two other points about Guardians 2

*   The Washington Post has an article noting that the movie really doubles down on the use of retro pop music, and it did feel a tad excessive compared to the more restrained use in the first movie.  The article criticises this whole genre of movie as getting a bit lazy:

When needle drops have been curated carefully and deployed judiciously, they can enhance a film’s atmosphere and its characters’ unspoken feelings. Too often, though, they’re lazy ploys to earn the audience’s buy-in, or to signal the connoisseurship and impressively arcane tastes of the filmmaker. Music that should be used to convey added layers of environmental and emotional information is instead used simply for nostalgia appeal and self-congratulation.

Yes, I concur.

*  Has anyone else yet mentioned that Ego's origin story seems to draw on the idea of a Boltzmann Brain?  Let me Google it - yes, someone at IMDB has already commented on this.  (It is very hard to be first on the internet!)