Interesting article on the topic at indiewire:
How Did the 2014 Sundance Film Festival Filmmakers Crowdfund (If At All?)
http://www.indiewire.com/article/ho...-film-festival-filmmakers-crowdfund-if-at-all
How Did the 2014 Sundance Film Festival Filmmakers Crowdfund (If At All?)
http://www.indiewire.com/article/ho...-film-festival-filmmakers-crowdfund-if-at-all