I want to know the answer to the following question:
When did Schwarzenegger purchase the rights to the film Pumping Iron?
All the background I'm provided with is that "Schwarzenegger drew attention and boosted his profile in the bodybuilding film Pumping Iron (1977), elements of which were dramatized; in 1991, he purchased the rights to the film, its outtakes, and associated still photography.". Is that enough to answer the question?
Answer: yes