Being short can actually be put to their advantage. A man who’s 5’7" can have a body that’s the same width as a man who’s 6’2". If you remove the context clues which let you determine their height difference, the shorter man will be appear to be broad and muscular while the taller man will look thin. And you can remove those context clues on a movie set.
It’s still a mostly socially-acceptable form of body shaming.