Netizens Slam 14-Year Gap Between Once We Were Us Stars Moon Ga Young, Koo Kyo Hwan

They also called for better casting choices and asked them to pair actors according to their age.

Age gaps in movies and dramas have always sparked debates. Yet, little has changed.  Just recently, the trailer for Moon Ga Young and Koo Kyo Hwan’s upcoming film, Once We Were Us, was released, and it has garnered both praise and criticism, mainly because of the 14-year difference between the lead actors. Read on to know more about it.

Once We Were Us Stars Moon Ga Young, Koo Kyo Hwan’s 14-Year Age Difference Sparks Negative Reactions

This new movie titled Once We Were Us is a remake of the popular 2018 Chinese hit called Us and Them. The story revolves around two former lovers who bump into each other on a plane. As they sit side by side, old memories rush in. Fans of Moon Ga Young and Koo Kyo Hwan expressed excitement over the pairing and the release of the trailer.  However, others were disappointed with the age gap between the stars. For those of you who don’t know, Moon Ga Young is 29 years old, and her co-star, Koo Kyo Hwan, is 42 years old. The 14-year age gap ignited heated debate online.

As per Koreaboo, some netizens feel frustrated and say that it disturbs the movie’s flow. They point out that even if one actor appears youthful, the age gap creates a mismatch. They also called for better casting choices and urged them to pair actors according to their age. Some also said that the movie will lose its original spark and raised doubts about the duo’s chemistry too. However, fans are already loving their chemistry and are counting the days for the film’s release.

Omg Moon Ga Young and Koo Kyo Hwan 😍 https://t.co/h8NhPneVwV

— Adri 🍀 YNWA DIOGO JOTA #20 (@NargleInAFez) October 28, 2025

Overall, this debate highlights ongoing concerns in casting choices. Many wonder if they truly fit in the role. Fans are divided, with some excited over the pairing. Whereas, others are asking for more balanced pairings in films and dramas.

Also Read: Bon Appétit, Your Majesty Stars Im Yoon-ah And Lee Chae-min’s 11-Year Age Gap Divides Viewers!

Well, just recently, the Bon Appétit, Your Majesty stars Chaemin and Yoona’s age gap sparked massive discussions online. However, the K-drama became a major hit and received immense praise.

What are your thoughts?

Also Read: Running Man Star Kim Jong Kook Addresses Rumours About Wife’s Background And Age Gap, Says THIS!

First Published: November 14, 2025 11:48 AM