Never Let Me Go is a 2010 British dystopian romantic drama film based on Kazuo Ishiguro's 2005 novel of the same name. The film was directed by Mark Romanek from a screenplay by Alex Garland. Never Let Me Go is set in alternative history and centres on Kathy, Ruth, and Tommy, portrayed by Carey Mulligan, Keira Knightley, and Andrew Garfield, respectively, who become entangled in a love triangle. Principal photography began in April 2009. Filming locations included Andrew Melville Hall and Forest School, Walthamstow. The film was produced by DNA Films and Film4 on a US$15 million budget.