There is no industry that pats itself on the back as much or as ostentatiously as Hollywood. In the literary world, there are readings and signings.
Authors go to a bookstore, read from their work, sign a few books and call it a night.
Occasionally, readings draw a crowd. For instance, when Kurt Vonnegut read from his new book at the beginning of the school year, the Barnes and Noble on Astor Place had to close down an entire floor. But that was just a floor. In Hollywood, premieres take up entire blocks. Celebrities arrive in limos with their supermodel dates in tow.