The Blair Witch Project
The cast of The Blair Witch Project horror film all experienced serious trauma when they were filming it, as directors simply sent them into the woods with no warning of what was going to happen. They were then purposefully taunted and were completely terrified throughout filming.
Psycho
Psycho is Alfred Hitchcock’s best known film, and it stars Anthony Perkins as a disturbed hotel owner that is hiding many dark secrets. While it was a pioneer horror film, it was controversial because it contained taboo topics at the time, like an unmarried couple sharing a bed, as well as a bare bottom being shown.