There are so many problems with this movie it's hard to know where to start. I have seen a lot of the movies in the Marvel cinematic universe including the two previous Avengers, the three Iron Man movies, the first Thor and first Captain America, Spider-Man Homecoming, and both Guardians of the Galaxy, but I still felt kind of lost. The Guardians of the Galaxy don't really mix with the Avengers (a clash of tone), and the CGI villain is just inane. The movie ends on a cliffhanger, but I have no desire to see the sequel. The movies was a waste of talent and a waste of time. Rewatch the first Avengers film instead.