Director Danny Boyle has said he is "very optimistic" about the proposed release of a sequel to his 1996 breakthrough film Trainspotting.
Speaking during an interview at the US festival South By Southwest in Texas, Boyle told The Playlist that he hopes to start work on the film in 2016.
He is confident that he can reunite the entire original cast for the film, including Ewan McGreagor and Johnny Lee Miller, for a loose adaptation of Irvine Welsh's own sequel to Trainspotting, Porno.
"This has been a long time coming," Boyle told The Playlist .
"There's always been this long term plan for 'Trainspotting 2.
Boyle also revealed that John Hodge, who wrote the original film, is working on the script.
"If John can produce a decent enough script, I don't think there will be any barriers to Ewan or any of the cast coming back.
"I think they'll wanna know that the parts are good so they don't feel like they are letting anyone down."
View the original trailer for Trainspotting here
Boyle also said that he recognised how much fans cherished the original film.
"The reason for doing it again is that people cherish the original, people remember it or have caught up with it if they never saw because they were younger.
"So you want to make sure you don't disappoint people. That will be the only criteria I think."