Halloween isn’t the only spooky holiday coming up – this year, October 11 will be known as Texas Chain Saw Massacre Day, after Mayor Kirk Watson signs a proclamation at City Hall on Friday honoring the 50th anniversary of the film’s premiere. The blueprint for countless slasher films, The Texas Chain Saw Massacre was filmed in and around Austin on a teensy budget, inspiring generations of DIY filmmakers to get it done scrappily. As AFS puts it, “this film changed the entire trajectory of horror cinema forever.” Act quickly if you want a ticket – We Luv Video’s barbecue-catered affair has already sold out. – Lina Fisher