In 2002, he wrote the screenplay for Danny Boyle's 28 Days Later, starring Cillian Murphy. He won a Best Screenplay honor at the 2004 Fangoria Chainsaw Awards for his script of the film. In 2005, Garland wrote a script for a film adaptation of Halo; he was paid $1 million. D. B. Weiss and Josh Olson rewrote this during 2006 for a 2008 release, though the film was later cancelled. In 2007, he wrote the screenplay for the film Sunshine – his second screenplay to be directed by Danny Boyle and to star Cillian Murphy. Garland served as an executive Producer on 28 Weeks Later, the sequel to 28 Days Later. He wrote the screenplay for the 2010 film Never Let Me Go, based on the novel by Kazuo Ishiguro. He also wrote the script for Dredd, an adaptation of the Judge Dredd comic book series from 2000 AD. In 2018, Karl Urban, who played the eponymous role in the film, stated that it was Garland who deserved credit for also directing Dredd.