Captain America: The First Avenger Studios confirmed the latter in May. Ryan Phillippe and John Krasinski were also considered for the role of Captain America. In April 2010, Sebastian Stan, who had been mentioned in media accounts as a possibility for the title role, was cast as Bucky Barnes. Stan is contracted for multiple films. Also in April, Marvel announced that Hayley Atwell had been cast as Peggy Carter, and that the film's name had been changed from "The First Avenger: Captain America" to "Captain America: The First Avenger". The next day it was reported that Joss Whedon would be rewriting the script as part
Captain America: The Captain mascot" and the Captain America's uniform, shield, and even the name were all property of the federal government. Therefore, Rogers is stripped from his shield, uniform, and the title and the government appoints John Walker (formerly known as Super-Patriot) as the new Captain America. Meanwhile, the Falcon, Vagabond, Demolition Man, and Nomad track down Rogers and convince him to continue fighting crime. So Rogers dons a red, white, and black costume and adopt a new identity known as "The Captain". Later, Tony Stark (a.k.a. Iron Man) gives him a new shield made of adamantium only for Rogers to find out