(Updated with more details) Chanting the controversial line of “from the river to the sea, Palestine will be free,” actress Melissa Barrera joined almost 100 pro-Palestinian protestors today at the Sundance Film Festival. Marching halfway up Park City’s Main Street in the snow, the protesters were under heavy police surveillance and swarmed by media. Protestors boarded buses at Kimball Junction Station, seven miles from Main Street, before touching down at the main bus depot near Swede Alley. Calling the protestors “misinformed” and “useful idiots,” Tishby told Deadline earlier today that she hoped to make it over to Main Street to speak directly with the demonstrators. Main Street.