Activist, writer and documentarian Michael Moore will join Occupy Denver protesters on Thursday.Moore will visit the protesters in Civic Center Park at 4 p.m.In the past month, Moore has visited with Occupy protesters in Portland, Oakland, San Francisco and Wall Street."This movement is only six weeks old and it has spread like wildfire across the country. This is happening everywhere," Moore said Monday at Occupy Portland. "The American people have had it. Know that there are literally millions that wish they could be here with you in this park."Moore is in Denver to promote his new book, "Here Comes Trouble."