It's fairly clear straight from the beginning why this second and last film by director Meir Zarchi isn't nowhere near as notorious and widely banned as its predecessor "I Spit on your Grave"
Heck, after seeing this film, you'll even wonder how these two films could possibly have been directed by one and the same person. And, last but not least, you'll also be extremely grateful that Zarchi retired from the horror/cult movie industry immediately after the release of this piece of garbage. "Don't Mess With My Sister" is shamelessly promoted as a revenge-thriller (it can even be found in box sets that are entitled "The Sweet Revenge Box" or "The Retaliation Collection"), but it's actually a intolerably dull and shockingly ordinary family drama. Who seriously cares about the random divorce issues of an unsympathetic couple and their ugly and constantly interfering family members? A dumb guy, who got forced into marrying the ugly duckling sister in order to obtain partnership in her brothers' filthy junkyard business, develops a crush on a sexy blond belly dancer and gradually considers leaving his wife. So what! Good for him, I would have left her even without the belly dancer coming along. Besides, the Mrs. booked the belly dancer herself as a birthday present for her hard-working husband, so actually she only has herself to blame. Anyway, that's basically the entire story. No vengeance, no sleazy payback or even self-righteous suicide to enjoy here! There's exactly ONE murder sequence in the entire film and that isn't even relevant to the plot. If, after experiencing the phenomenon called "I Spit on your Grave", your expectations were highly set on seeing bloody castrations or revolting sexual violations, you will feel robbed like rarely ever before. There's nothing positive to say about "Don't Mess with my Sister"
It's dull, ugly, fake and wannabe-engaging and totally retarded.