Friday, April 19-Saturday, May 4. Fridays & Saturdays at 7:30 pm; Sundays at 3 pm. $18. $16 senior discount. Tickets available at www.jpactheatre.com or by calling 708-656-1800. Free parking available. The outrageous musical comedy lovingly ripped off from the film classic Monty Python and The Holy Grail. Follow the tale of King Arthur and his Knights of the Round Table as they embark on their quest for the Holy Grail.