The only time Louie Psihoyos got to watch more than a handful of films at the Sundance Film Festival was when organizers essentially forced him to. “It was when I was a judge a couple years ago, and I saw something like 18 films,” said the 60-year-old director, who formerly lived in Boulder and won an Oscar for his 2009 documentary “The Cove,” which graphically portrayed dolphin-hunting practices in Japan.