Nothing contained in this section shall be construed
to apply to the exhibition, presentation, showing or performance of
any play, ballet, drama, tableau, production or motion picture in
any theater, concert hall, museum of fine arts, school, institution
of higher learning or similar establishment which is primarily devoted
to such exhibitions, presentations, shows or performances as a form
of expression of opinion, communication, speech, ideas, information,
art or drama as differentiated from commercial or business advertising,
promotion or exploitation of nudity for the purpose of advertising,
promoting, selling or serving products or services or otherwise advancing
the economic welfare of a commercial or business enterprise, such
as a hotel, motel, bar, nightclub, restaurant, tavern or dance hall.