Original: While the central concept behind Buffy was '' high school as a horror movie '' in small-town America , co-creators David Greenwalt and Whedon were looking to make Angel into a different '' gritty , urban show . ''
Simplified: While the main idea behind Buffy was '' High school as a horror movie '' in small-town America , Greenwalt and Whedon wanted to make Angel into a different '' gritty , urban show '' .