something very successful, especially a very successful book or film/moviea Hollywood blockbusterWordfinderbookbiography,blockbuster,book,character,editor,narrator,novel,plot,publish,titleOxford Collocations DictionaryBlockbuster is used before these nouns: deal,film,movie,…Seefull entrySee related entries:Types of filmWord Origin1940s (denoting a huge aerial bomb capable of destroying a whole block of streets): from block + buster.
See blockbuster in the Oxford Advanced American Dictionary