Sexploitation or "sex-exploitation" describe a class of independently produced, low budget feature films generally associated with the 1960s and serving largely as a vehicle for the exhibition of non-explicit sexual situations and/or gratuitous nudity. The term is often considered to designate a subgenre of exploitation films as a whole. Sexploitation films were generally exhibited in urban grindhouse theatres, the precursor to the adult movie theaters of the 1970s and '80s that featured hardcore content.