PRESS PHOTOS BY ED COURRIERThe Whitehall High School cast of “Monty Python's Spamalot” sings “Knights of the Round Table” during a dress rehearsal Tuesday night. The show, which opens Thursday, is a parody of the legend of King Arthur, adapted from the 1975 film “Monty Python and the Holy Grail.” On a trip to recruit knights for his legendary Round Table, King Arthur travels with his servant Patsy Copyright - &Copy; Ed Courrier