 It was Downey's idea to have Stark hold a news conference on the floor, and he created the speech Stark makes when demonstrating the Jericho weapon.Bridges described this approach as "a $200 million student film", and noted that it caused stress for Marvel executives when the stars were trying to come up with dialogue on the day of filming scenes.He also noted that in some instances, he and Downey would swap characters for rehearsal to see how their own lines sounded.