Food Safety Report: CMX Merritt Square 16 & IMAX, East Merritt Island Causeway, Merritt Island, FL, USA 1 year ago • details 110 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Stomach Pain, Cramps, Chills, Headache Suspected source: Popcorn Onset: Less than 4 hours Duration: 12 to 24 hours