Profile
- Movie: Planck Constant
- Revised romanization: Peulrangkeu Sangsoo
- Hangul: 플랑크 상수
- Director: David Cho
- Writer: David Cho
- Producer: Jo Sung-Gyu, Jo Eun-Yoon
- Cinematographer: Lee JongHyuk
- Release Date: April 30, 2015
- Runtime: 70 min.
- Genre: Drama / Fantasy / Sci-Fi
- Language: Korean
- Country: South Korea
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