http://www.imgain.com/blake-edwards-the-great-race-from-1965-featured-the-largest-pie-fight-ever-filmed-over-4000-pies-thrown-during-the-five-days-of-filming-costing-200000-1642450-in-todays-dollars-to-sho/
Blake Edwards' "The Great Race" (from 1965) featured the largest pie fight ever filmed. Over 4,000 pies thrown during the five days of filming - costing $200,000 ($1,642,450 in today's dollars) to shoot; $18,000 ($147,820) just for the pastry alone.