The new 'Saw' movie is apparently a bloody nightmare -- so much so, that someone called the cops while they were putting the film together in post-production ... so says the director.
Kevin Greutert told the harrowing tale to NME ... saying the key editor for 'Saw X,' Steve Forn, got paid a visit by the 5-0 while he was splicing up the film -- particularly, during sound design for a really gruesome scene ... where a character gets their eyes sucked out.
Here's how KG put it ... "There was a knock at the door. We have the doorbell [camera] video of the police walking up, [Forn answering the door] and the police saying, 'The neighbours [have been] calling and saying someone’s being tortured to death in here.'"
Forn apparently replied, "'Actually, I’m just working on a movie… You can come in and see it if you want?'" The police declined ... just wanting to make sure everything was kosher.