A movie theater (American English), cinema (British English), or cinema hall (Indian English), also known as a movie house, picture house, picture theater or simply theater, is a business that contains auditoria for viewing films for public entertainment. Most are commercial operations catering to the general public, who attend by purchasing tickets.

The film is projected with a movie projector onto a large projection screen at the front of the auditorium while the dialogue, sounds and music are played through a number of wall-mounted speakers. Since the 1970s, subwoofers have been used for low-pitched sounds. Since the 2010s, the majority of movie theaters have been equipped for digital cinema projection, removing the need to create and transport a physical film print on a heavy reel.

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