Trainspotting sequel trailer reunites Renton and gang

The trailer for the long-awaited Trainspotting sequel T2 has been released, 20 years after the original film hit cinemas.

The preview of the cult classic follow-up sees Ewan McGregor's character Mark Renton reunited with his old Edinburgh gang.

Johnny Lee Miller's Sick Boy, Robert Carlyle's Begbie and Ewen Bremner's Spud all feature in the film, based on the 2002 Irvine Welsh novel Porno.

The original 1996 film focused on drug use amongst a group of friends.

In the trailer for Danny Boyle's sequel, Renton tells his former love interest Diane Coulston, played by Kelly Macdonald, he no longer takes heroin.

But the clip features scenes of drug use, as well as fighting and dancing.

"You're an addict so be addicted, just be addicted to something else," Renton says.

"Choose Facebook, choose Twitter, choose Instagram and hope that someone, somewhere, cares."

His narration is heard throughout the trailer repeating the iconic catchphrase, "choose life".

Little details are known about the plot, only that it follows Renton's reckoning with his past, after betraying his closest friends.

In Welsh's book, the character's revolve around the pornography industry, as Simon "Sick Boy" Williamson, after a string of failed business ventures, decides to produce a pornographic film.

He meets Renton, who owns a nightclub in Amsterdam and agrees to finance the film.

Slumdog Millionaire director Boyle announced he was planning a sequel late last year.

He told Deadline "all the four main actors want to come back and do it" so it was "just a matter of getting all their schedules together".

The trailer also features Underworld's Born Slippy playing in the background - the song the first film was famous for.

The original film was a box office success, pulling in £4.7m in its opening weekend.

T2 Trainspotting will be released in UK cinemas on 27 January.