Bel Air was founded in 1923. Since then, it has been the home of many well-known motion picture stars. It has also been a popular filming location and setting for movies and television shows. Bel Air sits north of Sunset Boulevard and south Mulholland Drive, between the 405 freeway and Beverly Glen Boulevard. Together with Beverly Hills and Holmby Hills, it creates the Platinum Triangle of Los Angeles neighborhoods. Its estimated population is 45,190 people with an average age of 34 years old.