Lost Highway (1997)
The WTF Movie: For those who thought Twin Peaks was too mainstream, David Lynch pulls out the cinematic rug by turning Bill Pullman into Balthazar Getty halfway through the film.
Drop Your Popcorn Moment: Pullman meets the Mystery Man (Robert Blake) at a party, and then discovers he's also at Pullman's house AT THE SAME TIME.
Carnival of Souls (1962)
The WTF Movie: Herk Harvey's cult classic B-movie about a woman, Mary, who takes a job in a town only to find the inhabitants terrorised the pallid ghoul The Man and lured into a trance by organ music.
Drop Your Popcorn Moment: Mary looks towards a car window and sees the face of The Man reflected back at her.
The Happiness Of The Katakuris (2001)
The WTF Movie: To be honest, half a dozen Takashi Miike films might have made this list, but it's hard to beat this for weirdness - a musical horror about a family running a corpse-strewn B&B.
Drop Your Popcorn Moment: A woman is attacked by a claymation demon who's hiding in her soup.
The WTF Movie: Kids discover that their local undertaker - the Tall Man - is a shape-shifting superhuman weirdo who uses homicidal flying spheres to convert the funeral home's corpses into undead dwarfs.
Drop Your Popcorn Moment: A woman stabs her lover to death during sex, and then "she" transforms into the Tall Man.
The Wicker Man (1973)
The WTF Movie: Pagan horror, British style, as Edward Woodward's virginal copper realises it's not all hippy-dippy free love on Summerisle.
Drop Your Popcorn Moment: The first sign that all is not right with these people, as a child is cured of a sore throat by having a frog placed in its mouth.
Donnie Darko (2001)
The WTF Movie: Richard Kelly's instant cult classic about a teenager (Jake Gyllenhaal) stuck in a world-threatening 'tangent universe' when he mistaken escapes a jet engine falling on his bedroom.
Drop Your Popcorn Moment: Donnie meets Frank (a dead man in a Halloween rabbit costume) who tells him the world will end in 28 days, 6 hours, 42 minutes and 12 seconds.
The WTF Movie: Tod Browning's drama about carny folk using real-life "freakshow" performers to achieve its disquieting, decidedly non-politically-correct atmosphere.
Drop Your Popcorn Moment: The armless, legless Human Torso (Prince Randian) rolls and lights his own cigarette using just his tongue.
The Exterminating Angel (1962)
The WTF Movie: Luis Bunuel's surrealist classic about a dinner party whose guests find, inexplicably, that they cannot leave the house.
Drop Your Popcorn Moment: Sheep break into the house; the guests pounce in order to slaughter and eat them.
The Cabin In The Woods (2012)
The WTF Movie: Joss Whedon and Drew Goddard screw with expectations by revealing exactly what's going on beneath the archetypal 'cabin in the woods' scenario.
Drop Your Popcorn Moment: Movie monsters, assemble.
The WTF Movie: Ever thought the upper classes were a different breed? In Brian Yuzna's gory satire, it turns out those fears are not unfounded.
Drop Your Popcorn Moment: The rich introduce their favourite pastime, 'shunting' - an orgy of gross physical melding in which the gestalt flesh literally feasts on the poor.