what marvel movies to watch before avengers infinity war?
['"Captain America: The First Avenger" (2011) Marvel Studios. ... ', '"The Avengers" (2012) Disney. ... ', '"Captain America: Civil War" (2016) ... ', '"Doctor Strange" (2016) ... ', '"Thor: Ragnarok" (2017) ... ', '"Guardians of the Galaxy" (2014), "Guardians of the Galaxy Vol. ... ', '"Black Panther" (2018)']