Back in the early 1990s, movie theaters weren't that great. The auditoriums were cramped and narrow, and the screen was dim. But in 1995, the AMC Grand 24 in Dallas changed everything. It was the very first movie megaplex in the United States. This is the gigantic, neon, big-box store of moviegoing that we're all used to today, and it's easy to dismiss as a tacky ‘90s invention. But the megaplex—specifically this first megaplex in Dallas—upended the entire theater business and changed the kinds of movies that got made in ways you might not imagine.