this is labeled as a PG-13 action movie, but personally I would rate it otherwise.
let me start by saying: the screenplay visuals were stunning. whoever the film director was did a fantastic job.
HOWEVER, I found this movie to be incredibly gory and violent. Personally i would put it as 17+. Lots of graphic deaths, blood, and violence. Not to mention SEVERE demonic themes.
If you are religious, I wouldn't watch this. Even if you're not religious, there are depictions of demons and stuff like that which can be unsettling.
If you're into horror films, witchcraft, and the likes, this movie is definitely for you. If not, I'd stay away - the rest of it isn't really worth it.
it was difficult to keep up with the different universes, very fast-paced (I would've liked more backstory in the actual movie - if you haven't seen Wandavision, you might be totally lost) and the new characters they introduced had little to no screentime or they just killed them off immediately. also, for the entirety of the movie, i felt my braincells deteriorating. perhaps it was because they REALLY tried to make it super cool and dramatic, but i just thought it was silly.
overall, i wasn't a fan. Maybe if you're obsessed with Scarlet Witch and Dr. Strange you'd like it, though.