10 Great Movies You'll Only Want To Watch Once

Lars von Trier has a reputation for pushing boundaries. More than once, his films have been met with jeers at film festivals, and controversy upon wider release. While the other two films in his "Depression Trilogy" - Melancholia and Nymphomaniac - are both as grim and troubling as you might expect, it is 2009's Antichrist which remains the most horrifying of the bunch.

Like The Road, the characters in Antichrist are not given names. We follow the man and the woman as they escape to their isolated cabin in the woods after their infant son fatally falls from a window while the couple are having sex. Once they get there, things spiral out of control as the man suffers frightening visions and the woman slowly loses her grip on her sanity.

The opening scene, where the toddler's death plays out in slow-motion and black and white, is disturbing enough, but things go from bad to worse when the action moves to the eerie forest. The man awakens one morning to find his hand covered in ticks, and later sees a fox eating its own guts while ominously intoning, "Chaos reigns."

Things truly get grotesque when the man and woman begin sexually abusing each other and themselves. The woman smashes the man's testicles with a block of wood, and then masturbates him until he ejaculates blood. Later, she cuts off her clitoris with a pair of scissors. The explicit genital mutilation will leave viewers of all genders crossing their legs in discomfort.

Brutal, bleak and gripping, Antichrist is definitely not for the faint-hearted.