Representing science fiction at its most visionary, cerebral and enigmatic, Andrei Tarkovsky’s second journey into the genre after his celebrated ‘Solaris’ is an adaptation of the novel ‘Roadside Picnic’ by the Strugatsky brothers. (Who also adapted it for the screen.) It ranks alongside Kubrick’s ‘2001: A Space Odyssey’ as one of the greatest of science fiction films. Deep within the Zone, a strange and forbidden landscape, it is believed there exists a mysterious room with the power to grant the deepest wishes of those strong enough to make the hazardous journey to it. Desperate to reach it, a scientist and a writer approach the Stalker, one of the few able to navigate the Zone's menacing terrain, and begin a dangerous trek into the unknown. Hugely influential in both its visual style and storytelling (Alex Garland’s ‘Annihilation’ is the most recent example), this is a must-see for those who love cinema at its most mysterious.