"We liked David’s visit a lot because he was very interested in the problems in the Yanomami reserve," Davi's son Dario told Globo News. "He saw that there are many threats to the environment and to our culture. He showed he was concerned about the Yanomami people."
The documentary shows David and his close friend Dave Gardner explore the Brazillian rainforest in the run up to the 2014 World Cup.
Since retiring from football for good at the end of the 2012-2013 season, David has undertaken numerous charitable engagements.
David has worked for UNICEF and WildAid and recently appeared in a one-off special episode of the BBC’s Only Fools and Horses with Sir Jason David and Nicholas Lyndhurst as part of Sport Relief in the UK.