"Once We Were Us" Trailer: Mun Ka-young, Koo Kyo-hwan's Love Lost & Found

• "Once We Were Us" is a Korean remake of the 2018 Chinese film "Us and Them".
• Stars Mun Ka-young and Koo Kyo-hwan as former lovers whose emotional journey from young love to a painful breakup and eventual reunion is depicted.
• The trailer highlights their decade-long separation and an unexpected reunion with the poignant line, "Long time no see."
• Some fans have raised concerns regarding the 13-year age gap between lead actors Mun Ka-young (29) and Koo Kyo-hwan (42).
• Directed by Kim Do Young, the film is set to be released in theaters on December 31, 2025.

Why It Matters: This K-drama remake explores universal love and loss, sparking debate over actor age gap.