Following is a transcript of the video. Narrator: If you look at Iron Man's first suit, the Mark 1, and compare it to the hero's nanotech suit from "Avengers: Endgame," a lot has changed.

Gone are the days when coming dressed in a full Darth Vader or Stormtrooper costume was enough to prove your geek credentials. Now Chinese company Iron Man Factory is offering to make you a full ...