Mystery of Mamo

The Mystery of Mamo
Japanese film poster, designed by Monkey Punch
Japanese	ルパン三世 (original title) ルパン三世 ルパンVS複製人間(クローン
Hepburn	Rupan Sansei (original title) Rupan Sansei: Rupan tai Kurōn
Directed by	Sōji Yoshikawa
Produced by	Yutaka Fujioka
Screenplay by	Atsushi Yamatoya Sōji Yoshikawa
Based on	Lupin III by Monkey Punch
Starring	Yasuo Yamada Eiko Masuyama Kiyoshi Kobayashi Makio Inoue Goro Naya Kō Nishimura
Music by	Yuji Ohno
Cinematography	Keishichi Kuroki
Edited by	Yoshiaki Aihara
Production company	Tokyo Movie Shinsha
Distributed by	Toho
Release date	December 16, 1978 (1978-12-16)
Running time	102 minutes
Country	Japan
Language	Japanese English
Budget	¥500 million
Box office	¥915 million

The Mystery of Mamo, also known as The Secret of Mamo, is a 1978 Japanese animated science fiction adventure comedy film; it is the first animated film of the Lupin III franchise created by manga author Monkey Punch. The film was originally released Japan as Lupin III (ルパン三世, Rupan Sansei^?) but was later retitled to Lupin III: Lupin vs. the Clone (ルパン三世 ルパンVS複製人間(クローン), Rupan Sansei: Rupan tai Kurōn^?) to differentiate it from other elements of the franchise. The film was produced by animation studio Tokyo Movie Shinsha, directed by Sōji Yoshikawa and written by Yoshikawa and cult pink film screenwriter Atsushi Yamatoya. The film's plot follows master thief Arsène Lupin III and his attempts to foil Mamo, a wealthy and powerful recluse, and his bid for immortality.

Since its original Japanese release, the film has been licensed to several companies for release in North America and Europe, with four different English dubs of the film being produced in that time. In 2013, North American distributor Discotek Media released the film on a DVD containing all four English dubs, as well as extensive liner notes and essays about the film and its production.