Complex sentence: The documentary detailed her upbringing and her attempts to write a final novel ("Dear Brutus", which she decided to leave unfinished); it was broadcast in the United Kingdom on 2 June 2007 on BBC Four.
Split into simpler sentences: The documentary detailed her upbringing and attempts write a final novel "Dear Brutus", which she decided to leave unfinished. It was aired in the United Kingdom on 2 June 2007 on BBC Four.