Other than the original cast's lack of ageing, the sequel to 1996 runaway hit Trainspotting is taking shape, said director Danny Boyle at the Sundance Film Festival.

In Park City for the North American debut of UK box-office sensation 28 Days Later, the director said the sequel, based on the novel, Porno, by Trainspotting novelist Irvine Welsh, reunites the characters ten years later. He added that it was therefore essential that the film reunite the original cast members, which include Ewan McGregor, Robert Carlyle and Jonny Lee Miller.

"None of them look any different," he said. "I need them to look like they've burned themselves out, but they have all been using face creme and Vitamin E lotion."

Hot off the heels of his success with 28 Days Later, Boyle is working with his regular collaborator John Hodge, who wrote Shallow Grave, A Life Less Ordinary and adapted Trainspotting.

But Boyle's next project to go is expected to be Millions, a comedy set in the near future when the UK makes the transition from Sterling to the Euro. The project is based at London's Mission Pictures, with a screenplay by 24 Hour Party People screenwriter Frank Cottrell Boyce.

Boyle is also awaiting greenlights on two US-based pictures. The first, working titled The Texas Killing Fields, is a dark drama written by a retired US police officer about a murder spree. The project is being set up through Michael Mann's company Forward Pass.

The second title is Solomon Grundy, a high-concept love story based on the nursery rhyme which is set up at Miramax. Seen through the eyes of a nurse, it tells the story of a man who is born, lives and dies in seven days. On his fourth day, in his 30s, the man has a love affair with the nurse.

Miramax is understood to be wooing Adam Sandler for the lead. Robert Nelson Jacobs is adapting the Dan Gooch novel.