“28 Days Later” is a 2002 British post-apocalyptic horror film directed by Danny Boyle and written by Alex Garland. The film stars Cillian Murphy, Naomie Harris, Brendan Gleeson, and Christopher Eccleston.

The story follows a man named Jim (Cillian Murphy), who wakes up from a coma 28 days after a virus has spread throughout the UK, turning most of the population into bloodthirsty zombies. Jim meets a small group of survivors, including Selena (Naomie Harris) and Mark (Noah Huntley), and together they embark on a dangerous journey across the country to try and find safety and other survivors.

The film received critical acclaim for its fast-paced action, suspenseful storytelling, and strong performances from its cast. It also received praise for its unique take on the zombie genre, with the infected portrayed as fast and agile instead of slow and lumbering.

“28 Days Later” was a commercial success, grossing over $82 million worldwide on a budget of only $8 million. It has since become a cult classic and is widely regarded as one of the best horror films of the 2000s.