Once a red-light district, the Soho of today delivers more "grown-up" than "adult" entertainment. Its theaters, restaurants, pubs, and clubs merge with the first-run cinemas of Leicester Square and the venerable venues (Royal and English National Operas) of Covent Garden to create the mega-entertainment district known as the West End. During the day, Covent Garden's historic piazza is packed with shoppers and sightseers, while Soho reverts to the business side of its lively, late-night scene -- ad agencies, media, film distributors, actors, agents, and casting agents all looking for each other.