For decades, popcorn has been a staple of the movie theater experience and exhibitors’ bottom lines. Now, the receptacle it comes in is becoming just as important. As recently as three years ago, AMC ...

Last year it hawked novelty popcorn buckets, drink sippers and T-shirts to the tune of about $65 million in revenue. “It started with us in a big way with our own movie, ‘Taylor Swift ...