I had to watch an entire recap/spoilers/easter eggs video just to understand what this show is about. The storyline format looks so fun and creative, but I don't think there's much point in my watching it because I don't have any of the comic book background knowledge that gives the show its depth. But I'm kinda envious of the audience, who can make sense of it all and pick up on all the clues. Enjoy!
I've mostly not read Marvel comics. I read a few of the Ms. Marvel ones because they rebooted it with a young New Jersey woman from an Muslim family (I forget now if she herself follows the faith). No one from that comic is in the television series (at least none that I'd read (I'd stopped reading that series slightly before the main character joined the Avengers, and the Avengers are relevant to WandaVision). ETA: oh, I also read all of one specific run of Spiderman. That does not help me at all with this series.
I watched some but not all of Agents of S.H.I.E.L.D., which does not seem to help me any with this show.
I did watch most of the Marvel films, though, both the MCU, the two different X-Men series; the first Fantastic Four; I think all of the two hundred different Spiderman franchises (I think there's only been three different Spiderman since the 2000s (Toby Maguire, Andrew Garfield, Tom Holland), other than in animation, which added, oh, 200 more ((main being Shameik Moore) it was a multiple universe film, and therefore multiple Spiderman film). I don't think anything from the Fox Marvel films (X-Men, Fantastic Four, Deadpool), Universal (Hulk - which is now in Marvels universe films), or Sony (Spiderman; now in Marvels universe films) is relevant to the television show (at least I've not noticed anything).
It's only the Marvel Cinematic Universe films that are connected. heh. only. There are at least 23 of those films. Seeing those does help. But . . . I've not previous heard of a good chunk of the stuff other people are referencing in this thread. Like S.W.O.R.D. And "Darcy". And Captain Rainbow (whose name is actually Monica Rambeau, but I didn't actually know that until I looked up SWORD - it sounds like Rainbow when people say her name on the show). Rambeau is in Captain Marvel but . . . I didn't realize she was someone I should pay close attention to, and therefore I didn't even really pick up her name in the film (*does more research* oh, Monica Rambeau was the kid in the Captain Marvel film).
Shesh. I've seen 23 MCU films. Several seasons of Agents of SHIELD. Read several not relevant Marvels comics. Saw 8 Spiderman films. 1 Fantastic Four film. 2 Hulk films. 10 X-Men films. 2 Deadpool films. And episodes of MCU tv serires. And after all of that, a massive chunk is over my head. Like SWORD, Rambeau, Darcy . . . other things I missed.
*looks up Darcy* oh. Well, crap. Darcy was in two Thor movies. Which I saw.
And the FBI agent was in Ant-Man? Which I saw? Well wow my ability to observe things is super good. I mostly recognized the actor from Fresh off the Boat & Aquaman.
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Right, so, was going to say that I'm basically understanding what was going on, but didn't know everything other people were noticing. Then, after a bit of research, it turns out I have about the same level of knowledge from outside sources that a hyper ferret would have. As in, not much.