Though he specializes in horror films, director Oh In-chun has to have the TV on when he sleeps alone at home since he is very afraid of ghosts.
The director and the staff actually encountered ghost while filming.
Mourning Grave broke the record of the most attendance for Korean movies released in Mongolia.
The snow in one of the romance scenes is drawn with computer graphics.
The main actor KANG Ha-neul and the main actress KIM So-eun are both members of Choong Ang University class of 2008.