Meanwhile, at the Garden, a “big” (46-ounce) buttered popcorn will cost you $3.75, which comes out to 8.15 cents per ounce. But, a “really big” (85-ounce) popcorn is $4.25, or 5 cents per ounce.

A box of Orville Redenbacher's movie theater popcorn—each containing three popping bags— costs $4.58 at Stop & Shop.