> thousands of people, you see in the end credits

if you look closely, those usually on-set people, medics, drivers, catering services - those who have unions. VFX companies in most of the cases have a dozen of entries out of hundreds who actually worked on the title, or just a single line company mention. I could understand this practice in cellulose era, but saving a few megabytes at the cost of disrespect to your workers is simply despicable.