“ It’s almost like they’re running away from the movie,” says an executive at a rival studio. Photo: Walt Disney Studios In a perfect storybook ending, Saturday’s premiere of the Disney live-action adaptation of Snow White would culminate in a familiar scrum on the red carpet in front of Hollywood’s El Capitan Theatre. Fans would scream and rubberneck. Entertainment reporters behind velvet ropes would ask frisky if innocuous questions of the movie’s stars, Rachel Zegler and Gal Gadot . A