She made screen history dancing a tango with Rudolph Valentino in "The Four of the Apocalypse" (1921). This was the first time that sultry dance appeared in an American film; the scene captivated audiences and made Valentino a star. It is still one of the most famous moments of silent cinema. Dominguez was born in San Bernadino, California. She was one of the first Hispanic actresses to merit onscreen billing in Hollywood. Her films include "The Light of Victory" (1919), "The Sundown Trail" (1919), "The Wild Westerner" (1919), "Hair Trigger Stuff" (1920), "The Moon Riders" (1920), and "The Firecat" (1920). In 1920 she made "Under Crimson Skies" for director Rex Ingram, who then cast her in "The Four Horsemen of the Apocalypse." Tragically, she did not live to witness her success in that epic. While shooting her next film, "The White Horsemen" (1921), Dominguez collapsed from a ruptured appendix and died of peritonitis after surgery. She was 24.