StarFest Denver 
Whether you consider yourself a Trekkie or you can't wait until Halloween to dress as a Jedi, this celebration of science fiction and nerd culture is for you. Check out droids made by the B9 Robot Builders Club, meet local comics and cartoonists, and play your favorite board games. Don't miss a chance to meet the real stars of the weekend, including actor Michael Dorn (Worf from Star Trek: The Next Generation) and actress Jaime Murray (Defiance's Stahma Tarr). Fri-Sun, times vary.
Visit starfestdenver.com .