riday. Seven years have passed since Frequent Flyers Productions last performed its Halloween show “Theatre of the Vampires,” and in that time the Boulder-based aerial dance company has become an international force in the art form. The show, which meshes campy pop-culture references with head-spinning aerial work, even has its own beer: Twisted Pine’s Necktar of the Vampires (the proceeds of which benefit the nonprofit Frequent Flyers). With an anticipated sell-out, it’s best to get your tickets to “Theatre” before they vanish into the night air. 8 p.m. Oct. 31 at Macky Auditorium, 1595 Pleasant St. at the University of Colorado campus in Boulder. $15-$40. 303-245-8272 or frequentflyers.org. Note: Recommended for ages 13 and up. John Wenzel