The longer Robert Downey Jr. played Iron Man, the less of the superhero's costume he actually had to wear. In Jon Favreau's 2008 blockbuster that launched the Marvel Cinematic Universe, the top half of the actor's body was frequently kitted out in practical armor that greatly restricted his movements, but by the time he starred in Avengers: Endgame over a decade later, Tony Stark's armored alter-ego was virtually an entirely digital creation, leaving RDJ to essentially make a great deal of the movie sporting comfortable clothes adorned in motion capture dots.