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evidence: The Rostock People 's Theatre -LRB- Volkstheater Rostock -RRB- is the municipal theatre of the Hanseatic City of Rostock .. theatre. theatre. Rostock. Rostock. It has three venues  : the Großes Haus , the Theater im Stadthafen and the Kleine Komodie and put on plays , musical theatre / opera , ballet and philharmonic orchestral concerts .. theatre. theatre. musical theatre. musical theatre. opera. opera. ballet. ballet. There is a children 's theatre and a theatre youth club specifically for children and young people .. theatre. theatre