A trailer (also known as a preview or coming attraction) is an advertisement or a commercial for a feature film that will be exhibited in the future at a cinema, the result of creative and technical work.

The term "trailer" comes from their having originally been shown at the end of a feature film screening.

That practice did not last long, because patrons tended to leave the theater after the films ended, but the name has stuck.

Trailers are now shown before the film begins.

Hollywood (informally Tinseltown) is an ethnically diverse, densely populated neighborhood in the central region of Los Angeles, California.

It is notable as the home of the U.S. film industry, including several of its historic studios, and its name has come to be a shorthand reference for the industry and the people in it.

The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.

It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies.

The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and peer-to-peer networks for file sharing.