He studied at the historical Ludovica Royal Hungarian Military University in Budapest, graduating in 1932 as a First Lieutenant with a Master of Military Science and Engineering (MMSE). Promoted to Major in 1938, he was the founder and Chief of the Audio-Visual Military Education Department at the Royal Hungarian Army General Staff until 1945. After the war, Colman worked for the 3rd US Army Constabulary in Heidelberg, Germany, as motion picture director, cameraman and public relations officer until 1952.