is a 1979 Japanese animated action-adventure comedy film co-written and directed by Hayao Miyazaki as his feature film debut. It is the second feature film featuring Monkey Punch's master thief Arsène Lupin III, from his manga series Lupin III. The film was Miyazaki's first time directing a theatrical feature after having previously worked as an animator for Toei Animation and Telecom Animation Film and directing several television shows including Lupin III and two episodes of Lupin III Part II.

Plot

In September 1968, master thief Arsène Lupin III and his colleague, Daisuke Jigen, flee the Monte Carlo Casino with huge quantities of stolen money. They escape in Lupin's Fiat 500, but Lupin recognizes the bills as distinctively high-quality counterfeits. Deciding to seek out the source, they head to the Grand Duchy of Cagliostro, the alleged wellspring of the counterfeits.