I watched this hyped up movie on a long flight, it was so boring and repetitive, I finished it and felt completely deflated, if I'd been in the cinema I'd have walked out.
It didn't help that I cared little for the theme, ageing process reversed with drugs, it was vile, it didn't go anywhere, it had an absolutely repulsive ending, I guess horror isn't my thing, don't bother.
Recognition for Demi Moore and her acting contribution, really, low bar!