Original Korean Title: 제5공화국
Transliterated title: Je 5 Gonghwagug
International Title: 5th Republic
https://www.imcdb.org/movie_1004521541-Je-5-Gonghwagug.html

Original Korean Title: 강남 1970
Transliterated title: Gangnam 1970
International Title: Gangnam Blues

Also known as:
江南1970 (Taiwan)
江南ブルース (Japan)
Каннам 1970 (Russia)
https://www.imcdb.org/movie_3698118-Gangnam-1970.html