Pressure (Mirvish) – UK is the production of THE ROYAL LYCEUM THEATRE EDINBURGH AND CHICHESTER FESTIVAL THEATRE . Mirvish Productions is Canada’s largest commercial theatre production company. The company owns and operates four major downtown Toronto theatres. The company programmes two subscription seasons: the Main Season, which offers popular, large-scale productions, and the Off-Mirvish Season, which specializes in smaller more challenging productions.