SWITCHBLADE SISTERS is from 1975, but I’m considering it Slam Evil Summer, because it was re-released June 15, 1996, thanks to Quentin Tarantino’s fandom and his label Rolling Thunder Pictures. It’s directed by Jack Hill (SPIDER BABY, COFFY, FOXY BROWN), and it’s his penultimate movie as a director (the last being SORCERESS in 1982).
I did not see this in a theater, I had to wait to rent the VHS, but it must’ve been a great time with the right audience. It starts off so strong with the wah-wah infused theme song “Black Hearted Woman” playing over a documentary-style black and white photo montage of tough ladies in a world of boarded up houses covered in graffiti. Establishing the landscape.
And then it says “Music by MEDUSA”? What kind of badass group is that!? (Apparently it’s frequent Roger Corman composer and lounge music pioneer Les Baxter.) I’m not sure who took the photos, but the credited title designer is Bill Levey, director of BLACKENSTEIN and MONACO FEVER. His IMDb bio says he was childhood friends with James Dean, hung out with Elvis and discovered Patrick Swayze (who he directed in SKATETOWN U.S.A.).
I don’t know what DEMENTIA 13 means, but that’s the name of Francis Ford Coppola’s official on the record first feature directorial work, and it’s the rare Coppola horror outing, almost 30 years before 
