Ironclad is a 2011 British action historical drama film directed by Jonathan English. Written by English and Erick Kastel, based on a screenplay by Stephen McDool, the cast includes James Purefoy, Brian Cox, Kate Mara, Paul Giamatti, Vladimir Kulich, Mackenzie Crook, Jason Flemyng, Derek Jacobi, and Charles Dance. The film chronicles the siege of Rochester Castle by King John in 1215. The film was shot entirely in Wales in 2009 and produced on a budget of $25 million.

James Brian Mark Purefoy is an English actor. He played Mark Antony in the HBO series Rome, Nick Jenkins in A Dance to the Music of Time, college professor turned serial killer Joe Carroll in the series The Following, Solomon Kane in the film of the same name, and Hap Collins in the Sundance series Hap and Leonard. In 2018, he starred as Laurens Bancroft in the first season of Altered Carbon, a Netflix original series. Following an uncredited role as V in the 2006 film V for Vendetta, he was cast in a main role as Captain Gulliver "Gully" Troy / Captain Blighty in the 2020–2021 second and 2022 third season of the television series Pennyworth, the prequel to both Gotham and V for Vendetta.