Complex sentence: A deliberately humourless melancholic drama about a terminally-ill boy who wants nothing but to see snow and has an untalkative brother who is obsessed with toilet paper and honey and always say "Aargh".
Split into simpler sentences: A deliberately humourless melancholic drama about a terminally-ill boy who wants nothing more than to see snow. His non-verbal brother is obsessed with toilet paper and honey and says nothing but "Aargh".