It's called "fly filmmaking" - or making films on the fly. Put another way, it's what happens when you bring 35 youths together, give them cameras and a script and ask them to produce a short film in less than two days. Starting Thursday night, the young actors and filmmakers, ages 13 to 18, will converge on Skagit County's Swinomish Reservation to shoot and produce four interpretations of a script written for the event by Native American author Sherman Alexie. Marc Ramirez reports from the Seattle International Film Festival, currenlty underway.