Complex sentence: The firm is led by its founder and chairman, Gary Goddard, and has created a number of projects in a variety of entertainment media, including theme parks, resorts, casinos, retail malls, Broadway shows, and films.
Split into simpler sentences: The firm is led by its founder and chairman, Gary Goddard, and has created a number of projects in a variety of different forms of entertainment media. This includes theme parks, resorts, casinos, retail malls, Broadway shows, and films.