Avengers: Infinity War (2018) and Avengers: End Game (2019)
I'm not a Marvel guy, I find all that stuff boring, but my 9 and 11 year old nephew are obsessed and are dying for me to wath the movies.
So as a way to bond this holiday weekend, we had them over, ordered pizza (Colony for my wife and I and Dominos for the unsophisticated palates of preteens) and watched both movies.
Overall, I was mostly bored, as expected, and fell asleep halfway through Endgame, but I did appreciate the production value: the colors were beautiful and the landscapes were incredible, like a LOT of time and care was put into this movie.
Downey as Iron Man was my favorite character and was amazing at the vast cast of both movies. On the plus side, Elizabeth Olsen is a celebrity crush of mine while Scarlett Johansson was one of the past, both of which are supported by my wife who shares their Nordic heritage, so there's that.
If I had kids, I can see the interest in these movies, especially if your kids are jazzed about Marvel, but respectfully, these aren't for me, but I totally get their widespread appeal.