Which packaging innovation was specifically developed for movie theaters in the 1980s to reduce noise disruption during films?

In the Film & Television industry, movie theater concessions have evolved significantly over the decades. While we focus on what's on screen, there's an entire science behind the packaging innovations that enhance our viewing experience. From specialized popcorn buckets to collector's edition containers, theaters have revolutionized how movie merchandise and food are presented. This trivia question explores a groundbreaking packaging innovation that changed how we enjoy a theater staple.

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Silent Straw™ technology for soda cups
Soft-shell popcorn buckets with sound-dampening material
Candy boxes with specialized non-rattling internal compartments
Polypropylene-based soft candy packaging to replace noisy cellophane wrappers