MCU: 10 Fascinating Facts Behind Iron Man 2 (2010)

5. Sam Rockwell's Dance

All actors get into their roles in different ways, but Sam Rockwell is one of the only MCU actors whose approach to limbering up for his performances actually made it into the movie.

The dance that Justin Hammer does before presenting his drones at the Expo is the same dance that Rockwell himself does while he prepares to get into character.

As for another actor's role preparation, Mickey Rourke spent several months building up his strength and fitness to prepare for Whiplash. Even then he was unable to use the whip probably because it was too heavy, so he pushed his training even further, wearing heavy vests as he worked out to prepare for the armour.