According to Director Jonathan Vargas, The scene where Liza gives her prayer was Improvised by Michell Sanchez.
Shot in Two Days.
Spolier Alert: The Scene where Liza kills Simon, Dave Jia screams were so loud and disturbing, it frightened director Jonathan Vargas so bad, after the take he was found on the floor shaking in fear. The Clip could be found on the web.
Michell Sanchez's debut film.
Spoiler Alert: After shooting the final confrontation at the end, Both Dave Jia and Michell Sanchez both received standing ovations from the crew.