The MCU's Dark Knight.

Rating: 10/10 (7 July 2018)

I can't review this without spoiling it, so read at your own risk.
Still here? Okay. The first five minutes set the overall tone PERFECTLY. From Loki redeeming himself, and finally calling himself and Odinson, perfect. These 5 minutes are mostly predictable, but needed.
I was really caught off guard by Gamora's death, and I never saw that Red Skull cameo coming at all. The ending was absolutely emotional. It was unexpected and, honestly, really bleak. When Spider-Man died, I honestly haven't cried that much since I saw Interstellar.
Lastly, I have to applaud the cast and crew for keeping literally everything about the movie under wraps. Fake scripts were used, so nobody in the cast knew how the movie ended, not even RDJ. This movie is an absolute game changer, and I can't wait for Avengers 4.