Captain America: The Winter Soldier a panel at 2013 San Diego Comic-Con International and presented footage from the film. In addition, Marvel had booths depicting a Smithsonian-type exhibit showing Captain America and the Howling Commandos from "Captain America: The First Avenger". At the end of the month, audiences were shown a glimpse of the film along with some of Marvel's other Phase Two slate of films at Disney XD's Disney Fandom event. In August 2013, Feige, Evans, Stan, and Mackie presented a clip of the film at Disney's D23 Expo. In September 2013, Marvel announced that it is again partnering with Harley-Davidson, continuing their relationship
Captain America: The Winter Soldier going to seem dirty and underhanded and shifty, and people won't be telling the truth." "Three Days of the Condor" in particular was used as the main source of the script structure, following the idea that the protagonist is being chased by a threat they, along with the audience, only discover halfway through the film. The writers felt this approach was similar to how Stan Lee reinvented Captain America in the 1960s and 1970s, with "the Captain dealing with all sorts of the same things that the country [was] dealing with–Vietnam, Watergate and all that stuff–so he gets to have