Actor Jung Hae In participated as a special jury member at the 22nd Mise-en-scène Short Film Festival opening ceremony held on June 18, 2026, at CGV Yongsan in Seoul's Yongsan-gu. Alongside Lee Min-ho, Su-young, Cho Jung-seok, and Sim Eun-kyung, Jung Hae In attended the photo wall event to help discover future talent in Korean cinema. The Mise-en-scène Short Film Festival, Korea's only genre-specific short film festival established in 2002, has produced acclaimed directors including Na Hong-jin, Jang Jae-hyun, Yeon Sang-ho, and Yoon Jong-bin. After taking a hiatus from 2021 due to the COVID-19 pandemic, the festival resumed last year after a four-year break. The participation of accomplished actors including Jung Hae In demonstrates the festival's prestige and influence.