Question: how many calories in a small bag of popcorn?
Answer: AMC Theatres According to AMC, a small popcorn contains 225 calories. In fact, the small AMC popcorns that we bought weighed about 50 percent more than the company claimed. Our AMC smalls contained 370 calories and 20 grams of saturated fat—about what you'd get from that classic healthy snack: eight pats of butter.