One would think that an actor dressed as a skeleton has come to proclaim  the death of theatre. Normally, he says, there would be a set, an orchestra plenty of actors. But tonight everything is different: The stage is empty,  there is no sound, no light. A woman enters: she is about to rehearse a  dying scene that will last the entire performance. The British company  Forced Entertainment is, of course, far from paying its last respects to the-  atre. Quite the contrary: over the past 25 years, author and director Tim  Etchells’ company has lost none of its fresh and radical verve. «Spectacular»  conjures up spirited theatre out of thin air – quite unspectacularly. (kdi)