After the original release in 1982 and the director's cut in 1992, this definitive version of Ridley Scott's dystopian masterpiece finally allows his ambitious themes about the meaning of life in an ailing society to shine through. It's still a fantastic melding of film noir and sci-fi, in which morose hitman Rick Deckard (Harrison Ford) tracks down illegal replicants infiltrating humanity. But his character is now fleshed-out as a flawed antihero, troubled by doubts over his own identity - fears that are later confirmed by the expanded unicorn dream sequence. With the restored footage mainly culled from the original work print, some dodgy special effects corrected, the voiceover removed, and the "happy ending" made bleaker, Scott's visionary thriller makes the acid rain/neon-drenched Los Angeles of 2019 a far colder, more violent and depressing place.

In the smog-choked dystopian Los Angeles of 2019, blade runner Rick Deckard is called out of retirement to terminate a quartet of replicants who have escaped to Earth seeking their creator for a way to extend their short life spans.