Just like most Ken Russell offerings, Altered States boasts an eccentric edge. As a result, both Chayefsky’s novel and script have a sound scientific foundation and pose layered philosophical questions about altered states of consciousness. Chayefsky’s script is verbose and obsessed with precision, while Russell’s Altered States is a 100-minute rollercoaster from hell, one where you’re constantly exposed to audiovisual excess. But this very excess gives Altered States the impetus to stand out as a visceral cinematic experience. But Russell’s Altered States is ultimately about the impermanence of relationships, and how easy it is to lose sight of what’s important when you’re transfixed by the garish assault of psychedelia.