There is only one rule by which one should ever judge a Barber of Seville. If your eyes (and possibly also your trouser legs) aren’t moist by the time the interval arrives, you might as well leave. The last time this Jonathan Miller production was revived by the English National Opera, it passed with flying colours. This time round, I was dry as a bone. Three hours and I notched up two smiles and a snigger.

After what must seem like a long exile, the opera director with one of the most distinctive track records in the business is to return as chief executive of a company which has been on fitful form recently. As, it must be said, has Pountney's recent history after the celebrated "powerhouse" era at English National Opera alongside Mark Elder and Peter Jonas. Since then, he has veered from the trademark business verging on chaos to a tender, painstaking rediscovery of recent works which deserve our attention.

The Royal Opera has announced that Kasper Holten, artistic director of the Royal Danish Opera, has been appointed Director of Opera at Covent Garden, to succeed Elaine Padmore at the end of this season.

Robert Lepage is not just one of the most fêted and sought-after theatre directors in the world; he is also one of the most prolific. His international breakthrough came with The Dragon Trilogy in 1985, and since then the French-Canadian’s work has been seen across the globe. His stunningly ambitious production of Wagner’s Ring cycle was recently performed at the Metropolitan Opera, New York, and he conceived and directed Cirque du Soleil’s latest acrobatic blockbuster, Totem, which can currently be seen at the Royal Albert Hall.

In 2001 Rufus Norris cleaned up on the awards front with his stunning production of Festen, the David Eldridge adaptation of Thomas Vinterberg's disturbing film which started life at the Almeida Theatre. But it was his grimly ironic staging of Kander and Ebb's Cabaret that I would put among the half-dozen or so best productions of a musical that I have ever seen. Now comes an even bigger leap - a hell of a leap (pun intended) - with his major operatic debut at the English National Opera: Mozart's Don Giovanni.

It is rare enough for directors to collaborate in theatre, even rarer in opera. Patrice Caurier (b. Paris, 1954) and Moshe Leiser (b. Antwerp, 1956) began their long collaboration in their 20s. They are now in their 50s, and since that first production of Britten’s A Midsummer Night’s Dream at Opéra de Lyon in 1982, they have never worked (or lived) apart. Cohabiting and collaborating, they are opera’s closest equivalent to Gilbert and George.

A delicious new treat is promised at The Royal Opera House for Christmas: a comic opera by Tchaikovsky that brings the wit and fun of a Russian magical folk tale to the stage in a staging of rare opulence. A story of turbulent love, magical rides through the sky with the Devil, and an impossible task - to get a peasant girl a pair of Catherine the Great's slippers - The Tsarina's Slippers has ballets and Cossack dancing as well as a host of singing characters.