Complex sentence: Dubbed "the Mecca of bodybuilding", it was frequented by Arnold Schwarzenegger and Dave Draper and featured in the 1977 docudrama "Pumping Iron", which brought attention not only to the gym itself but also to bodybuilding and physique in general.
Split into simpler sentences: Dubbed "the Mecca of bodybuilding", it was frequented by Arnold Schwarzenegger and Dave Draper and featured in the 1977 movie "Pumping Iron". The movie brought attention not only to the gym itself, but also to the world of bodybuilding and physique in general.