What's the most disturbing film you've seen and why?

Curious to know. For some reason Tusk of all movies stuck with me a lot after watching it lol for reasons unbeknownst.Also the poughskeepie tapes, that was tough to sit through, bordering on misery porn (the cheesy documentary bits intersped throughout were almost a relief). Let me know in the comments if anyone else felt the same way about that film! via /r/movies https://ift.tt/Cupv1yM