Most airlines also require passengers be at the boarding gate approximately 30 minutes before departure. As airport processing times vary, Delta's website suggests arriving at the airport three hours before international travel, while Virgin America recommends allowing two hours.
The film is projected with a movie projector onto a large projection screen at the front of the auditorium while the dialogue, sounds and music are played through a number of wall-mounted speakers. Since the 1970s, subwoofers have been used for low-pitched sounds.
Two women performing on a barn door in the first known musical event at the Hollywood Bowl, ca.1920. According to an article in the San Diego Union newspaper, June 19, 1941, the woman at the piano was Carrie Jacobs-Bond, one of the originators of the Theatre Arts Alliance and a resident of nearby Hollywood Heights.