Captain America: The First Avenger Flagg's Uncle Sam recruitment poster from World War I and J. Howard Miller's "We Can Do It!" poster from World War II. The soundtrack album for "Captain America: The First Avenger" includes the original score by Alan Silvestri, as well as an original song, "Star Spangled Man", with music composed by Alan Menken and lyrics by David Zippel. The soundtrack was recorded at Air Studios in London and released by Walt Disney Records on July 19, 2011. At the 2010 San Diego Comic-Con International, some footage that had been shot in the previous week was shown at the San Diego
Captain America (William Burnside) in contemporary times, to battle the original Captain America). This complicated origin is the reason that some sources list "Young Men" #24 as this character's first appearance, when in fact this, and subsequent 1950s-published Captain America stories, was clearly created with the intention of depicting the original Captain America. A 1977 story, "What If" Vol. 1 #4, (August, 1977), introduces two other, previous Captain Americas - William Naslund, appointed by Truman in 1945 to succeed the original Captain America, and Jeff Mace, who succeeds Naslund as Cap in the spring of 1946 after Naslund is killed in action. These versions