query: Is Captain America: The Winter Soldier the first Captain America film?
passage: Bucky Barnes
James Buchanan "Bucky" Barnes is a fictional superhero appearing in American comic books published by Marvel Comics. Originally introduced as a sidekick to Captain America, the character was created by Joe Simon and Jack Kirby and first appeared in Captain America Comics #1 (cover-dated March 1941) (which was published by Marvel's predecessor) as the original and most well-known incarnation of "Bucky".[1] The character is brought back from supposed death as the brainwashed assassin Winter Soldier (Russian: Зимний Солдат, translit. Zimniy Soldát; Belarusian: Зімовы Салдат translit. Zimovy Saldat; Uzbek: Qish Askari translit. Kish Askari), and later assumed the role of Captain America when Steve Rogers was presumed to be dead.
passage: Captain America
Captain America Comics #1 — cover-dated March 1941 and on sale December 20, 1940, a year before the attack on Pearl Harbor, but a full year into World War II — showed the protagonist punching Nazi leader Adolf Hitler; it sold nearly one million copies. While most readers responded favorably to the comic, some took objection. Simon noted, "When the first issue came out we got a lot of  ... threatening letters and hate mail. Some people really opposed what Cap stood for." The threats, which included menacing groups of people loitering out on the street outside of the offices, proved so serious that police protection was posted with New York Mayor Fiorello La Guardia personally contacting Simon and Kirby to give his support.