I loved Sister, My Sister...in fact, I bought it without having seen it first based on recommendation alone, and I haven't regretted it one bit. I think that the acting was great, by the entire cast; I felt that the storyline (based on an actual murder case and subsequent play), though revisited in this film, is still relevant in that it addresses issues of classism, oppression, and societal stigmatization. To dismiss this film as merely an incestuous, murderous lesbian romp is a mistake. Even though the lesbian subject seemed to be a large factor, there is a definite timidity to the photography of the sex scenes, in that there was more in the way of well framed shots than fleshy action given the intensity of feeling portrayed. So probably, the film isn't as offensive as the description might imply. I feel that the film was evenly handled throughout. Even the murders, while fairly gruesome as described in the voiceover of the trial, weren't disgustingly splatter film-like, they, like the sex scenes left much to the imagination. I recommend this film highly, it's not at all fluffy feel-good schlock, it's disturbing, dark and painful - that's what makes it so good!