Complex sentence: Book-ended by documentary footage as well as interviews with German teenagers about what they know about the Holocaust, Boll effectively shows the viewers just how depraved and sadistic life in the camp was or could have been.
Split into simpler sentences: Book-ended by documentary footage as well as interviews with teenagers regarding what they know about the Holocaust. Boll attempts to shows the viewers just how depraved and sadistic life in the camp was, or could have been.