
1) Avant-garde cinema 2) Highbrow cinema 3) Highbrow theater 4) Indie film venue 5) Theater for niche audiences
Found on
https://www.crosswordclues.com/clue/art-house

Theatres that promote, advocate and feature serious foreign, avant garde, or art films. Usually these theatres are small and play their films to a discriminating crowd. Though few art houses remain in the United States -- due to a number of factors including the development of art films in the United States -- some theatres remain. `Poor Richards` ...
Found on
http://www.allmovie.com/glossary/term/art+house

a motion-picture theater specializing in the exhibition of art films. Also called
Found on
https://www.infoplease.com/dictionary/art-house
No exact match found.