Danny Boyle’s breakout film Trainspotting (1996), based on Irvine Welsh’s novel about a coterie of drug-loving wankers, is a revered cult classic — take the best orgasm you’ve ever had, multiply it by a thousand, and you’re still nowhere near it — and now a sequel is on the way. The original gave us the indelible image of Ewan McGregor diving into a squalid toilet on a heroin high and jump-started the careers of both Boyle and McGregor. It looks like McGregor will dive back in: Deadline reports that, along with Boyle (who had previously promised us that the sequel will be worth the wait) and screenwriter John Hodge, the principal cast of McGregor, Johnny Lee Miller, Ewen Bremner, and Robert Carlyle will return for more drug-addled adventures in the long-gestating sequel, based on Welsh’s Porno. Plans for the film fell apart (like the lives of the film’s characters, you might say) ten years ago because the script was mediocre, according to Boyle. The Oscar-winning director will work around his actors’ TV schedules while prepping for the sequel. Shooting (get it?) will begin in 2016, with Boyle eyeing a 2017 release.