Thomas & Friends is a children's television series about the engines and other characters working on the railways of the Island of Sodor, and is based on The Railway Series books written by the Reverend W. Awdry.

Thomas & Friends: Hero of the Rails is a 2009 British animated adventure film and feature-length special of the British television series, Thomas & Friends. The film is produced by HIT Entertainment with animation from Nitrogen Studios. It introduces full CGI animation replacing live-action models, and the addition of a voice cast for the characters alongside the narration to the TV series.