The 34th annual Rocky Horror Picture Show Halloween Bash starts at 10 p.m., Saturday, Oct. 27, with the Heavy Petting shadow cast hosting pre-show games, a Virgin Sacrifice and prize giveaways, including a $100 grand prize for the best costume. The film screens at midnight; $10, $8 member. Its mature subject matter is not recommended for the easily offended. No one under 17 is admitted; ID is required; no alcohol is served.