The Avengers being a crossover is okay with me, but when the solo movies require in depth knowledge of previous unrelated projects is where I need to draw the l

The Avengers being a crossover is okay with me, but when the solo movies require in depth knowledge of previous unrelated projects is where I need to draw the line. The biggest failure for me was the Doctor Strange 2 movie, where the Scarlett Witch became a murdering sociopath off screen,though I was able to enjoy the movie regardless.