Movies in MCU that you need to watch in order to completely enjoy Avengers : Infinity war

Being a marvel fan-boy (NO HATE FOR DC) it would be not right ethically if i do not address the latest extravaganza that is coming our way on April 27th the "AVENGERS INFINITY WAR". Ok,so believe it or not it took about 10 years in order to build this movie,not the movie but just the build up for it which included establishing characters and developing character archs and many other cinematic implementations. So when the trailer dropped the overwhelming response it got from people was a result of an enormous 10 year wait and build up. This post is actually for those who didn't quite understand the reason for that sort of response for a movie trailer ,but liked the trailer and want to join in the buzz. So, here I bring to you a chronological order of MCU movies you need to watch before 27th April. 1. IRON MAN Plot: After being held captive in an Afghan cave, billionaire engineer Tony Stark creates a unique weaponized suit of arm...