Kubrick decided to make a short film documentary about boxer Walter Cartier, whom he had photographed and written about for "Look" magazine a year earlier. He rented a camera and produced a 16-minute black-and-white documentary, "Day of the Fight". Kubrick found the money independently to finance it. He had considered asking Montgomery Clift to narrate it, whom he had met during a photographic session for "Look", but settled on CBS news veteran Douglas Edwards. According to Paul Duncan the film was "remarkably accomplished for a first film", and used a backward tracking shot to film a scene in which Cartier and his brother walk towards the camera, a device which later became one of Kubrick's characteristic camera movements. Vincent Cartier, Walter's brother and manager, later reflected on his observations of Kubrick during the filming. He said, "Stanley was a very stoic, impassive but imaginative type person with strong, imaginative thoughts. He commanded respect in a quiet, shy way. Whatever he wanted, you complied, he just captivated you. Anybody who worked with Stanley did just what Stanley wanted". After a score was added by Singer's friend Gerald Fried, Kubrick had spent $3900 in making it, and sold it to RKO-Pathé for $4000, which was the most the company had ever paid for a short film at the time. Kubrick described his first effort at filmmaking as having been valuable since he believed himself to have been forced to do most of the work, and he later declared that the "best education in film is to make one".