<P> In November 2010, Stanley Tucci stated that he had completed filming his scenes and that the rest of the production would wrap in about three weeks . In February 2011, it was announced that Alan Silvestri had been chosen to compose the film score . In March 2011, it was reported that Captain America: The First Avenger would be undergoing reshoots in the United Kingdom and in Los Angeles in April 2011 . A scene was also filmed in New York City's Times Square on April 23, 2011 . </P> <P> The film features nearly 1,600 visual effects shots, which were split between thirteen different companies . To achieve the appearance of the skinny, pre-serum Steve Rogers, director Joe Johnston stated that he used two major techniques: </P> <P> Most of the shots were done by an L.A. company called LOLA that specializes in digital "plastic surgery ." The technique involved shrinking Chris in all dimensions . We shot each skinny Steve scene at least four times; once like a normal scene with Chris and his fellow actors in the scene, once with Chris alone in front of a green screen so his element could be reduced digitally, again with everyone in the scene but with Chris absent so that the shrunken Steve could be re-inserted into the scene, and finally with a body double mimicking Chris's actions in case the second technique were required . When Chris had to interact with other characters in the scene, we had to either lower Chris or raise the other actors on apple boxes or elevated walkways to make skinny Steve shorter in comparison . For close - ups, Chris' fellow actors had to look at marks on his chin that represented where his eyes would be after the shrinking process, and Chris had to look at marks on the tops of the actor's head to represent their eyes...The second technique involved grafting Chris's head onto the body double . This technique was used mostly when Chris was sitting or lying down, or when a minimum of physical acting was required...</P> <P> Captain America's shield, which serves as both a defensive tool and a weapon, came in four types: metal, fiberglass, rubber, and computer graphics (CG). Prop master Barry Gibbs specified that "We had the' hero shield,' which was made of aluminum, for our beauty shots (and) close - up work . We then created a lighter shield that was aluminum - faced with a fiberglass back, for use on a daily basis...And then we had a stunt shield made of polyurethane, which is sort of a synthetic rubber...and we made an ultrasoft one we put on (Evans') back, so that if there were an accident, it wouldn't hurt him ." Visual effects supervisor Christopher Townsend said Evans "would practice swinging the practical shield so he knew the arc and the speed at which he should move . We would take the shield from him and shoot the scene with him miming it . Then we would add in a CG shield". </P>

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