The look Rose gave him - one of her patented 'Really, that's what you're going with Creevey?' looks - just made Dennis dissolve into a fit of mirth all over again. "I know you can be quiet, dear," he agreed with a nod. "But there's etiquette involved with talking at the cinema. It's simply not kosher and doing so would have earned you - and by extension me - a whole tonne of looks from our fellow patrons."
Having reached the portion of his drink that was actually made up of well, drink, he took an appreciative sip. "Thousands of hours and millions of pounds no doubt, yep," he agreed still grinning at her. "As to why, well there's two answers to that. Firstly, because the studio that made the movie will hope that they make all the money back, plus a whole bunch more." He sipped his drink again and then put on a more serious face. "The second reason of course, is that magic doesn't exist. It's ridiculous! Can you image it? Magic, existing? What a load of rubbish!" He sat back and grinned at her rather like the Cheshire cat, except decidedly gayer and with better hair. "You see, for billions of people around the world, magic doesn't exist. The concept of using a couple of well placed charms to achieve the same effects as computer animation doesn't occur to them because it's not a possibility for them. It's what I love about my non-Muggle born friends - you're all so used to magic that you can't imagine what life would be without it."