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15. Monty Python’s Spamalot

Gross: $168.1 million
Average Paid Admission: $70.55
Broadway Run: 2005 - 2009
Total # of Performances: 1,575

“Spamalot” proudly claims to be a “musical lovingly ripped off from the motion picture 'Monty Python and the Holy Grail.'” Academy Award-winning director Mike Nichols, whose credits include "The Graduate" and "Who’s Afraid of Virgina Wolf?,” directed the Broadway production.

Photo: Ryan Miller | Getty Images