The Marvel Cinematic Universe has such a stronghold on some fans that they are turned into geeks who know minute details about every character in the franchise. They will tell you how Garrett Morris, who played a version of Ant-Man in a 1978 Saturday Night Live sketch, makes a brief appearance in the 2015 film version of the comic book, starring Paul Rudd. Or, how the war rhinos depicted in Black Panther were actually really big horses.

A still from Eternals, a Marvel Studios film