Short answers, pulled from the story.
Porco Rosso is a 1992 animated film by Hayao Miyazaki about Marco Pagot, an Italian First World War fighter ace who has been transformed into an anthropomorphic pig and works as a freelance bounty hunter pursuing air pirates over the Adriatic Sea. The story is set in a stylized version of the interwar Mediterranean and explores themes of disillusionment, personal identity, and the psychological aftermath of war.
Porco Rosso was written and directed by Hayao Miyazaki and produced by Toshio Suzuki at Studio Ghibli. The film was distributed in Japan by Toho and released on the 18th of July, 1992.
Joe Hisaishi composed the Porco Rosso soundtrack, recording it with a full orchestra of 70 musicians. The album was released on the 25th of July, 1992, and includes two vocal songs performed by Tokiko Kato, who also voices the character Gina in the Japanese version.
The Walt Disney Home Entertainment English dub, released on DVD on the 22nd of February, 2005, features Michael Keaton as Porco Rosso, Cary Elwes as Donald Curtis, Susan Egan as Gina, and Kimberly Williams-Paisley as Fio. The dub was supervised by Tony Bancroft and written by Don and Cindy Hewitt.
Porco Rosso was the number-one film at the Japanese box office in 1992. In France it sold 167,793 tickets, and in other European countries it grossed an additional $573,719.
Porco's plane, the Savoia S.21, is based on the Macchi M.33, and the fictional Piccolo aircraft company draws from the real Italian manufacturers Caproni and Piaggio. Real figures including test pilot Bellini, fighter ace Francesco Baracca, and aviator Arturo Ferrarin, who flew from Rome to Tokyo in 1920, all appear by name or reference in the film. The word "Ghibli," visible on the plane's engine in the film, was also the name of the Caproni Ca.309 aircraft and the origin of the studio's own name.