Here's the first "industry" superhero movie. Now knowledge of hollywood companies movements is needed not only to get the jokes but also to get the plot.

But if there's something this film shows is that, after a certain amount of films, any franchise stops talking about whatever is about, and begins to talk about time. Not the film's time (though there's a great deal of time problems involved in this one) but our time, the audience's time. The time we spent with the franchise, which we can see on the young faces of the now old actors, which we can remember, catching up with memories of what we were when we first saw the early films in the saga. A supercut in the end credits celebrates exactly this, that a franchise, if it's a successful and beloved one, is not only a cultural artifact but a life companion.