Conversation so far:
Who or what is Dorothy?
Dorothy is comic opera
Where was the comic opera Dorothy first performed?
Gaiety Theatre
Was  the comic opera, Dorothy a success when it was first performed at theGaiety Theatre?
the comic opera Dorothy had a rocky start
Did the comic opera by alfred cellier ever achieve acclaim after this initial lack of response?
Dorothy became a great success at the box office and had an initial run of 931 performances, breaking the record for the longest-running musical theatre production in history

Question: How much money did it make?
Self-contained rewrite: How much money did the comic opera dorothy by alfred cellier make after it became a great success at the box office and had an initial run of 931 performances, breaking the record for the longest-running musical theatre production in history?