When it comes to describing a famous and influential person in the entertainment industry, the term "big star" is often used. However, there are many other synonyms that can be used to convey a similar meaning. For instance, a "superstar" is someone who has achieved a high level of fame and success in their field. Similarly, a "megastar" is someone who is known and loved by millions around the world. Other options could include a "leading light," a "celebrity," a "icon," or a "legend." All of these words can be used to describe an individual who has made a significant impact on their industry and the world at large.