World Cup 2014: Duo film World Cup matches from fans' point of view
4 July 2014 Last updated at 00:05 BST
Arthur Lombard and his cousin Louis Schmidt decided that football fans needed a voice inside the stadium and took their camera and microphone to report directly from the seats.
The videos of the two French students received thousands of views on YouTube, and the popularity helped them launch a crowdfunding campaign that financed their trip to the World Cup.
For the BBC's Real Fans series, Franz Strasser met the two in Rio de Janeiro.