A promo short looks at how electricity generated at Boulder (Hoover) Dam is sent to Hollywood to make films. A brief tour of the M-G-M power plants is followed by behind-the-scenes footage a... Read allA promo short looks at how electricity generated at Boulder (Hoover) Dam is sent to Hollywood to make films. A brief tour of the M-G-M power plants is followed by behind-the-scenes footage and previews of several upcoming releases.A promo short looks at how electricity generated at Boulder (Hoover) Dam is sent to Hollywood to make films. A brief tour of the M-G-M power plants is followed by behind-the-scenes footage and previews of several upcoming releases.