 Based on a musical by Arthur Kopit and Maury Yeston. The idea for  this U.S. version came about around the same time Ken Hills version  was playing in England. When Andrew Lloyd Webber produced his own  version a couple of years later, the Kopit/Yeston idea was shelved.  When Andrew Lloyd Webbers version came to the U.S., they realized  that the two shows had different basic elements and direction. The  show was revived as a television movie, using real operatic  sequences instead of Yeltsons score, and later brought to life as  the complete stage play with Yeltsons score, as originally  intended. Thus three different versions were made (2 U.K. and 1 U.S)  with Webbers being far more successful.