Before he achieved a bit of industry notice with his screenplay for 2023’s “Cocaine Bear,” writer Jimmy Warden was already busy exploring more craziness in the world of stalkers and their objects of desire. Shot in 2022, “Borderline” aims to have some darkly comedic fun with severe mental health issues, pitting a pop star and her battle with a most determined, and insane, fan, who’s attempting to stage a wedding to his beloved without consent. Warden (making his directorial debut) gets semi-wacky with the endeavor, and he’s very tuned into style and soundtrack, treating the picture like a music video at times. “Borderline” has the makings for something surprising and enjoyably grim, but the helmer pulls most of his punches in the offering, and his sense of humor and casting leaves much to be desired. Read the rest at Blu-ray.com