Eric Idle and John Du Prez's long-touring musical is lifted mostly from Monty Python and the Holy Grail the 1975 take on the Arthurian legend and is at its best when filching dialogue from the movie, with performances that replicate the dry wry humor of faulty assumptions taken to their most idiotic conclusions. But this is no longer a vicious comedy about the world, it's a far gentler homage to Monty Python, filled with Sarah Palin jokes and mock Academy Awards. The idea has undergone a tectonic shift from being pointedly silly to generally silly. The result is far more popular than penetrating.
Tuesdays-Fridays, 8 p.m.; Saturdays, 2 & 8 p.m.; Sundays, 1 & 6:30 p.m. Starts: July 8. Continues through Sept. 6, 2009