In the 1950s, Kubrick and Harris developed a sitcom starring Ernie Kovacs and a film adaption of the book "I Stole $16,000,000", but nothing came of them. Tony Frewin, an assistant who worked with the director for a long period of time, revealed in a 2013 "Atlantic" article: "He was limitlessly interested in anything to do with Nazis and desperately wanted to make a film on the subject." Kubrick had intended making a film about the life story of Dietrich Schulz-Koehn, a Nazi officer who used the pen name "Dr. Jazz" to write reviews of German music scenes during the Nazi era. Kubrick had been given a copy of the Mike Zwerin book "Swing Under the Nazis" after he had finished production on "Full Metal Jacket", the front cover of which featured a photograph of Schulz-Koehn. A screenplay was never completed and Kubrick's film adaptation plan was never initiated. The unfinished "Aryan Papers", based on Louis Begley's debut novel "Wartime Lies", was a factor in the abandonment of the project. Work on "Aryan Papers" depressed Kubrick enormously, and he eventually decided that Steven Spielberg's "Schindler's List" (1993) covered much of the same material.