This video has a very interesting point with the soundtracks from the Marvel movies. At least where the main themes go for each of them, I know very few; such as Avengers and the first Iron Man theme, unfortunately for Iron Man, it's never used again in the sequels. Then again, I don't think Marvel's standalone sequels ever use the original composer from the first ones. In recent memory, Ant-Man and Doctor Strange have very strong theme music. I hope they're used again in their next installment. What are your thoughts?