Complex sentence: They are attracted to the world of wealthy whites in the newsreel and feel strangely moved by the tom-toms and the primitive black people in the film, but they also feel that they do not belong to either of those worlds.
Split into simpler sentences: They are attracted to the world of wealthy whites in the newsreel and feel strangely moved by the tom-toms and the primitive black people in the film. But they feel they do not belong to either of those worlds.