Monty Python's Spamalot is "the musical lovingly ripped off from the musical picture Monty Python and the Holy Grail" (according to the press release). "Telling the legendary tale of King Arthur and the Knights of the Round Table, and their quest for the Holy Grail, Monty Python's Spamalot features a chorus line of dancing divas and knights, flatulent Frenchmen, killer rabbits, and one legless knight." You can read Martin Denton's review of the original production, dated March 24, 2005, here.