Wong Hoi's short Sonatina (2018) was selected for Sundance Film Festival (Hong Kong). In 2019, his project Wong Tai Sin Assassination (in development) won the mm2 Award and the HAF Award for a Hong Kong project. Hoi directed Let it Ghost (2022), produced The Lyricist Wannabe (2024), and co-directed an episode of the Below the Lion Rock 2025 anthology with Norris Wong.