It’s 9:30 on a Friday morning in May, and in ordinary Portland fashion it is raining. But what’s out of the ordinary is that there are 300 people standing in a line that snakes around the South Park Blocks in downtown Portland.“I actually got here at about 8:20 a.m. and a line had already formed, but then they reshuffled the line and somehow I wound up in first spot,” said Brian Joines, one of the hundreds of cinephiles waiting for the opportuni…