Castle Sidcup is a cinema located at 106 High Street in Sidcup, within the London Borough of Bexley in Greater London, United Kingdom. It operates as a small local cinema serving the Sidcup community, offering a mix of mainstream releases, independent and classic films, as well as occasional special screenings and community events. Castle Sidcup is not part of a large multiplex chain and functions as an intimate neighbourhood venue with limited screens and a more personal atmosphere. It is easily reached from Sidcup railway station and local bus services and sits on the town's High Street near shops and cafés.