In 1930 Bartosch moved to
Paris and created the 30 minute film entitled 'L'Idée' (
The Idea) for which he is most remembered. The film is described as the first serious, poetic, tragic work in animation. The film's characters and backdrops were composed of several layers of different types of
paper from semi-transparent to thick
cardboard. Special effects like
halos, smoke and fog were made with
lather spread on glass plates and lit from behind. Bartosch based the film on a
wordless novel of
woodcuts by
Frans Masereel,
The Idea (1920). ''L'idee'', when released in 1933, featured a score by composer
Arthur Honegger, including an
ondes Martenot, which is believed to be the very first use of an electronic musical instrument in film history. The following year,
Franz Waxman's score for
Liliom (1934) used a
theremin. From 1933 to 1938, Bartosch worked on an anti-war film,
St. Francis or
Nightmare and Dreams, a 25-minute piece being financed by
Thorold Dickinson. When the
Nazis invaded Paris, he deposited the film at the
Cinémathèque Française. The film was destroyed during the Nazi occupation, and only a few still images exist. In 1948, he spent a year working for
UNESCO in Paris mentoring
George Dunning, a Canadian-born animator known for his involvement with
the Beatles's animated feature,
Yellow Submarine (1968). ==References==