28 Years Later is currently raking up numbers at the box-office, but shooting it was definitely not a cakewalk. Danny Boyle, who directed the apocalyptic thriller which was scripted by Alex Garland, noted that it was a "nightmare" when he came to know about a rule that changed how the scenes for the film were shot.

28 Years Later is a follow-up to 2002’s 28 Days Later and 2007’s 28 Weeks Later. Boyle and Garland had reunited for the latest film, after 18 years for the film which was released in Indian theatres on June 20.

In an interview with People magazine following the London premiere of the film, Boyle said the virus's rampage on Earth for 30 years meant that the infected would have no clothes left. "I mean, if you're recently infected, you'd have some clothes, but if you've been infected for a long time, the clothes would just disintegrate with the way that you behave," he said.

Despite the logical flaw, the makers had to dress the actors in relatively intact clothing, as a minor child was also present on set.

14-year-old Alfie Williams, portrays a key role in the film as the son of Aaron Taylor-Johnson's character. "Interestingly, because there was a 12-year-old boy on set, you're not allowed for anybody to be naked, not really naked, so they look naked, but it's all prosthetics," Boyle further added.

The ensemble cast of the film also stars Jodie Comer, Ralph Fiennes, along with Jack O'Connell and Erin Kellyman.

Produced by Boyle and Garland, along with the original film's producers Andrew Macdonald and Peter Rice.

Cillian Murphy starred in the original 28 Days Later (2002) which centered on a bicycle courier (played by Cillian Murphy) who wakes up from a coma to discover the world had been overrun with zombies following the outbreak of a virus.