Back in the mid-‘90s, long before he was the Oscar-winning director of films like Slumdog Millionaire and the forthcoming Steve Jobs (which could very well earn him another Academy Award), Danny Boyle teamed with a group of future Scottish stars including Ewan McGregor and Jonny Lee Miller for Trainspotting, a wickedly entertaining dark comedy about the high times and bad trips of a group of Edinburgh-based heroin addicts.

Nearly 20 years after its release, Trainspotting remains an exhilarating and unnerving experience, from its opening chase scene set to Iggy Pop’s “Lust for Life” to its most famous moment, when McGregor magically disappears into a toilet to retrieve heroin suppositories that he’d just accidentally, um…evacuated. For years, there’s been talk of a sequel to the film, but no real traction. Now, Boyle’s changing that.

At a “work-in-progress” screening of Steve Jobs during the Telluride Film Festival over the weekend, Boyle said Trainspotting 2 is real, and it will be his next film if he can manage to get all of his actors together in time. Boyle said John Hodge, who wrote the first film based on Irvine Welsh’s novel, has a script done, and that the film will be based on Porno, Welsh’s own sequel to his Trainspotting novel.

“All the four main actors want to come back and do it,” Boyle told Deadline. “Now it is only a matter of getting all their schedules together which is complicated by two of them doing American TV series.“

Boyle is, of course, referring to Jonny Lee Miller’s ongoing role as Sherlock Holmes on Elementary, and Robert Carlyle’s commitment to playing Mr. Gold on Once Upon a Time. That complicates things, but the shows don’t shoot year-round, so hopefully Boyle can get the stars to align, and before long we’ll see Rent Boy, Spud, Sick Boy, and Begbie together again.