Place it just before the popcorn reveal, then follow it with a cheer as the bowl is lifted into frame. A game show buzzer works well earlier, when the snack choice is still being debated, setting up the deal as the answer.
About this sound
This is a short 3.5-second voice clip built around one cheerful sales-style line about hot buttered popcorn being a deal. The speaker sounds warm, eager and a little theatrical, as if tempting someone at a cinema counter. It feels playful and appetite-whetting, the kind of quick boast that makes an ordinary snack run feel like a bargain worth celebrating.