If you are planning to view The Lion King during its initial appearance in Philadelphia, just remember one thing: don't arrive late. The Tony Award-winning musical boasts what may well be the most dazzling, goose-bump-inducing opening in theater history. And thanks to Julie Taymor's innovative direction and Garth Fagan's original choreography, the rest of the show is pretty spectacular as well (Academy of Music, June 8-September 10).