Complex sentence: At first it did films for advertising; the first feature film it processed was "Masoom", a Shekhar Kapoor film, and eventually it grew to be control the processing of almost 90% of the Hindi film industry.
Split into simpler sentences: At first it did films for advertising; the first feature film it processed was "Masoom", a Shekhar Kapoor film. Eventually it grew to be control the processing of almost 90% of the Hindi film industry.