10. Quicksilver Lives On In Avengers: Age Of Ultron
The Maximoff twins, Pietro and Wanda, made their first debut in Age of Ultron, and people were intrigued by what they could do. Unfortunately, before the end of the movie, Pietro loses his life in order to save Hawkeye. It’s hard to consider the reasons why he would be removed from the same film he first appeared in, but it can’t be changed now. The writers did continue the legacy of his name: Hawkeye decided to give his newborn Pietro’s middle name as a way to remember him.