Blowup: the key to Michelangelo Antonioni’s film is in a dialogue early on: if one looks at an abstract art work long enough, one finds something to see. This film can be many things: a murder mystery wrapped in a conspiracy, a character study, a portrait of the Swinging 1960’s in London. It’s all of those things, but it’s also not enough of any one (it’s certainly very abstract, actually), which is frustrating. David Hemmings is very intense, and it’s always a pleasure to watch Vanessa Redgrave. The jazzy score, by Herbie Hancock, is awesome.