'The Forest' trivia and fun facts

Natalie Dormer actually went to the suicide forest for research with her Japanese driver, she ventured five meters off the path to take photos and her Japanese driver wouldn't step half an inch over the path.

According to the spanish comic author Juan Torres, the plot, title, and look of the film are very similar to the ones on "El bosque de los suicidas", a spanish comic book by himself and Gabriel Hernández published on 2011.