Grave Encounters (2011)
Mentioned in dialogue
It is homaged.
Was said to be one of the many inspirations for the game
When April's MacBook screen is shown, a folder named "Grave Encou..2011)" is visible
The building "Riverview Hospital" was also the building used in the Grave Encounter films
It is mentioned and discussed. Also, posters, photographs, DVD covers and footage of this movie are shown.