Whether discussing his writing process, experimenting with hallucinogenic drugs or mixing music in his life as a DJ, acclaimed Scottish author and outsider icon Irvine Welsh remains a figure of fascination, and in this striking new film, director Paul Sng (Tish, Poly Styrene: I Am a Cliché) pays fittingly eclectic homage with an approach that is richly detailed, playful and complex. An entirely unmissable film about a major Scottish artist. Unclassified: 15+