THE GRAND THEATRE The Grand Theatre is a cultural icon in London, Ontario and is recognized nationally as a cultural leader. ... The Grand is committed to producing some of the best professional live theatre in Canada and to enriching, engaging, entertaining and transforming the lives of members of its community. With its MainStage, UnderGrand and Theatre for Young Audiences performances, the theatre takes great pride in providing world-class entertainment to London and Southwestern Ontario residents each season from September to May. read more