Casey Neistat has quite a following on Youtube, and is the creator of the HBO series 'The Neistat Brothers'. One day he was approached by 20th Century Fox to create a promotional video for the upcoming Ben Stiller movie, 'The Secret Life of Walter Mitty'. 

20th Century Fox wanted a video about chasing dreams, to tie in with the theme of the movie. Neistat, responded with his idea of using the $25,000 budget to help typhoon victims in the Phillipines. He never expected the movie company to agree. 

Here are the amazing results: