From Longman Dictionary of Contemporary Englishcostume dramaˈcostume ˌdrama noun [countable] AMa play, TV programme, or film that is about a particular time in history, in which people wear costumes from that time
Examples from the Corpus
costume drama• More often, the movie founders when confronting spiritual issues and settles for the spectacle of a costume drama.• Nothing could be further from costume drama or the spreading of cloaks over puddles. 