Librettist Sir William Schwenck Gilbert and composer Sir Arthur Seymour Sullivan collaborated on fourteen operettas between 1871 and 1896. Although the score to the first of their operettas, Thespis, has disappeared, companies around the world continue to perform the others. The 1999 biographical film portraying Gilbert and Sullivan’s lives, Topsy-Turvy, received tremendous critical acclaim, sparking great interest in the operettas. Since then, more than twenty DVDs of Gilbert and Sullivan’s operettas have come on the market, and the renewed interest in the operettas has revived interest in their parodic content.