Who produced the anime movie Porco Rosso?

Porco Rosso (紅の豚, Kurenai no Buta?, lit. "The Crimson Pig") is a 1992 anime film by Hayao Miyazaki about an Italian World War I fighter ace, now living as a freelance bounty hunter chasing "air pirates" in the Adriatic Sea. The man has been cursed, and has the head of a pig. Once called Marco Paggot, he is now known to the world as "Porco Rosso", Italian for "Crimson Pig."