At left, Jekyll & Hyde's Robert Cuccioli with The Weir's Michele Fairley at Amadeus' opening night party Dec. 15. At left, actress Elizabeth Berkley ("Showgirls," "Any Given Sunday") and actor James Barbour (Jane Eyre). Peter Shaffer's Tony-winning drama tells of artistic rivalry between the established court composer whose music played by all the rules, Antonio Salieri, and the musical genius who rewrote the way music would be understood, Wolfgang Amadeus Mozart.