Complex sentence: The Indian film industry, of which one is commonly known as Bollywood, has its own set of rules in this aspect and there are often superstars in this region, who often command premium pay commensurate with their box office appeal.
Split into simpler sentences: The Indian film industry, of which one is commonly known as Bollywood, has its own set of rules in this aspect. There are often superstars in this region who command premium pay commensurate with their box office appeal.