In 1908, he became a laboratory assistant at
Carl Laemmle's
Independent Moving Pictures. He also became involved in editing and printing. He focused on newsreels and became editor and producer of
Universal Weekly and established bureaus in key cities to provide the news. In 1913, he was placed in charge of production at IMP's studio at Tenth Avenue and 59th Street. His younger brother Harry was now also working for IMP and together they made their first film,
Traffic in Souls (1913). Jack became executive vice-president, heading the distribution organization that included
Nathan B. Spingold and Abe Schneider (father of
Bert Schneider). Over the years, there were power struggles between Jack and Harry with the two not speaking to each other for months. In 1932, Jack attempted to oust Harry but failed, with Brandt resigning and selling his third of the company to Harry, who took over as president, consolidating his power. ==Personal life==