Complex sentence: Chasen began her early career as a publicist for her brother, film director Larry Cohen, who hired her as a publicist for his 1973 blaxploitation film, "Hell Up in Harlem", which became one of her earliest jobs in the industry.
Split into simpler sentences: Chasen began her early career as a publicist for her brother, film director Larry Cohen. Cohen hired her as a publicist for his 1973 blaxploitation film, "Hell Up in Harlem", which became one of her earliest jobs in the industry.