Complex sentence: His character lives in an apartment opposite the protagonist's; in keeping with the screenplay's theme of social voyeurism, his dialogue is never clearly heard, and he appears only in long shots, sometimes seen through a window.
Split into simpler sentences: His character lives in an apartment opposite the protagonist's. In keeping with the screenplay's theme of social voyeurism, his dialogue is never clearly heard and he appears only in long shots, sometimes seen through a window.