The 5,000 Fingers Of Dr T (1953)
Uncle Boonmee Who Can Recall His Past Lives (2010)
The WTF Movie: This Palme D'Or winner from Apichatpong Weerasethakul wove Thai folk-tales through laidback art-house stylings to conjure up a hallucinatory, supernatural world.
Drop Your Popcorn Moment: A princess has sex with a talking catfish.
A Scanner Darkly (2006)
The WTF Movie: Richard Linklater uses image-scrambling rotoscope animation to visualise the mind-bending concept of Philip K. Dick's novel about an undercover narc (Keanu Reeves) succumbing to the effects of new drug Substance D.
Drop Your Popcorn Moment: Reeves dons the "scramble suit," a form of identity protection that continually morphs and blurs his features.
Synecdoche, New York (2009)
The WTF Movie: Frustrated theatre director Caden Cotard (Philip Seymour Hoffman) embarks on his greatest venture - an ongoing recreation of the entire city of New York in a huge warehouse populated by a cast of thousands.
Drop Your Popcorn Moment: The 'play' reaches the point where Caden created the play, forcing him to cast long-term stalker Sammy (Tom Noonan) as 'Caden' in the 'play within a play.'
The City Of Lost Children (1995)
The WTF Movie: Jean-Pierre Jeunet and Marc Caro make their debut, Delicatessen , look like neo-realism with the tale of a child-stealing scientist aided by multi-cloned Dominique Pinon an a talking brain in a jar.
Drop Your Popcorn Moment: The opening dream sequence, in which a boy's house is invaded by dozens of Santa Clauses.
Stalker (1979)
The WTF Movie: Andrei Tarkovsky's rain-soaked sci-fi movie sees the titular guide lead two men on an illegal journey into the Zone, where their innermost desires will be met.
Drop Your Popcorn Moment: The men find the Room at the centre of the Zone… and change their minds about going in.
Naked Lunch (1991)
The WTF Movie: David Cronenberg gets the mugwump jism up in every verse, as he adapts William S. Burroughs' notorious tale of a drug-addicted writer's adventures in the Interzone.
Drop Your Popcorn Moment: Writer William Lee (Peter Weller) discovers that his typewriter has transformed into a bug and started talking to him.
Altered States (1980)
The WTF Movie: Ken Russell, no stranger to WTF-ery, embroils William Hurt in bizarre experiments with sensory deprivation and psychotropic drugs that leave him, shall we say, changed.
Drop Your Popcorn Moment: Hurt is crucified while wearing the head of a seven-eyed goat.
Repulsion (1965)
The WTF Movie: Catherine Deneuve goes crazy in a London flat in Roman Polanski's poison-pen letter to the Swinging Sixties.
Drop Your Popcorn Moment: Deneuve is attacked by arms breaking through the walls of the flat.
Pi (1998)
The WTF Movie: Darren Aronofsky's debut steals back the blueprint for the indie career debut from Tarantino by going the other way: the lo-fi, B&W weirdness of a mathematician hounded by a Jewish cult.
Drop Your Popcorn Moment: Tortured genius Max (Sean Gullette) realises there's only one way of numbing the pain, and reaches for a power drill.
