Serena Harriet Scott Thomas is an English actress and documentary producer. Her television roles include Diana, Princess of Wales in Diana: Her True Story in 1993. Her film appearances include The World Is Not Enough (1999), Hostage (2005), Brothel (2008), and Inherent Vice (2014).

Hostage is a 2005 American action thriller film directed by Florent-Emilio Siri. The film was based on the 2001 novel of the same name by Robert Crais, and was adapted for the screen by Doug Richardson. The film stars Bruce Willis, who co-produced the film, as the police chief who takes place as the negotiator when the family of a wealthy accountant is held hostage by three teenagers.