This 35mm print is being screened on the date of the massacre.
Chicago Reader review:
Tobe Hooper's 1974 bloodbath cheapie acquired a considerable reputation among ideologically oriented critics, who admired the film's sneaky equation of middle-class values with cannibalism and wholesale slaughter. The plot, such as it is, concerns a group of teenagers who fall into the hands—and knives, and ultimately chain saws—of a backwoods family of homicidal maniacs. The picture gets to you more through its intensity than its craft, but Hooper does have a talent.
Dave Kehr
Here (and above) is the trailer.