Catfish ($30,000 budget)
Catfish is another documentary on this list that made a lasting impression on its viewers and made millions at the box office. The main reason why is because it’s something we’ve never seen before. The documentary details the hidden truths of relationships formed on the internet.

The underlying question of the film is “Are people who they really say they are?” With a budget of $30,000, Nev Shulman’s movie was able to bring in $3.5 million at the box office. The success also led to an MTV series where Nev and his friend Max helped people who were being catfished.