LogFAQs > #965921743

WandaVision leads into the movie, and it is recommended. But the only info you really need before watching the movie is "Wanda went through some shit, now she's a little unhinged." The movie would still make perfect sense, you'd just be missing some details.

And I would also say you don't even need to watch all the episodes to get those details, most of it's in the final episode.

Also please don't misinterpret this as me saying DON'T watch it, I still highly recommend WandaVision as it's still the best of the MCU shows. My only point is that it's not 100% required to understand MoM.