Numerical data and audience figures

Success in documentaries can be seen through massive viewing numbers and the strong reactions from fans online. For example, the documentary series "Arnold" about Arnold Schwarzenegger was a huge hit, with more than 88 million hours watched in its first week. This helped it beat some of the world's most popular shows at the time. Documentary success is also a big part of how companies like Netflix make money; in 2025, Netflix made over $42 billion in total revenue as people continued to view their original films and series. 

As well as numbers, memes, blogs, and posters is what helps documentary films and series grow. Fans of the "Arnold" documentary often post on sites like Reddit and Facebook to talk about how the show motivated them to go to the gym or work harder on their own goals. Other documentaries, like "The White Helmets," have a different impact. This film about rescuers in Syria was so powerful that it won an Oscar and helped more than 130,000 people sign a petition to support the real-life heroes. While "Arnold" fans share funny memes, "The White Helmets" led to international discussions about bravery and saving lives.