Re: Last movie you watched
Prax has offered an interesting perspective on Infinity War here.
The movie turned out to be what I expected it to be - a fun, villain-oriented action/adventure romp in the form of a comic book "crisis crossover". It couldn't be anything else simply because of its huge budget (AFAIK the official figure hasn't been published yet, but it's between 300 and 400 million dollars according to Wikipedia; that might include the sequel, though). It HAS TO break box office records to be considered a success (data says it's doing just that) and that means aiming for mass appeal. A truly smart, thought-provoking sci-fi film was out of the question, especially after Blade Runner 2049 bombed badly despite its moderate budget.
Like the first Avengers movie, Infinity War is very fun to watch, but it may not have much staying power. We'll get more MCU installments which will overshadow the previous ones. In 2038 Arrival, Annihilation and Blade Runner 2049 might be beloved sci-fi cult classics; Infinity War will probably be remembered only as one of many products of the "comic book movie era".
For now, those superhero tentpoles are making a lot of money, so Hollywood is not gonna change anytime soon; I guess the only thing we can do is to try to enjoy them for what they are (and some of them, like this one, are actually enjoyable) and wait for the bubble to burst