Understanding How Many Calories in a Large Popcorn at Regal Cinemas
                                
                                
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                                    4 min read                                
                            
                                According to lab analyses conducted by the Center for Science in the Public Interest (CSPI), a large popcorn from Regal Cinemas contains approximately 1,200 calories even without any added buttery topping. This makes the iconic movie treat one of the most calorie-dense items on the menu, far exceeding many expectations.