A candid and entertaining look at Madonna’s 1990 Blond Ambition tour that mainly alternates between grainy black-and-white backstage/offstage footage and certain numbers from the touring show that were shot in color. The young director, Alek Keshishian, had been directing music videos since 1986, and this movie looks it, for better and for worse: there’s a nervous tendency to crosscut between scenes and between onstage and offstage footage that keeps things constantly moving but often prevents the numbers and certain documentary segments from being appreciated in their entirety. It generally works better as a mosaic self-portrait (Madonna served as executive producer) than as a concert film, andnot too surprisinglywhat comes across is mainly the star’s likable desire to be both naughty and responsible, conscientious and silly: she’s a prima donna who plays mother hen with her troupe, stoutly defends her show against censors (but seems perfectly willing to have it cut to shreds for the purposes of this movie), and is energetically on at every minute. Warren Beatty, Kevin Costner, and Sandra Bernhard are among the brief celebrity walk-ons (1991). (JR)