Then came Teen Groot in Avengers: Infinity War, sulking and ignoring orders like any rebellious adolescent. But when the time came, he stepped up, sacrificing his own branch to complete Stormbreaker.

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Diesel voiced Groot for 2014’s Guardians of the Galaxy and reprised the role in 2017’s Guardians of the Galaxy Vol. 2, 2018’s ...

Still, Avengers: Infinity War was a massive moment in the Marvel Cinematic Universe, which was basically the entire monoculture by 2017. Would the movie live up to the hype and the hope?

The Collector will also reappear in “Guardians of the Galaxy,” thus pushing the Infinity War storyline forward. This after-credit scene sets up “Avengers: Age of Ultron” as we are ...