I saw the Living Theater's legendary production of Jack Gelber's play (directed by Judith Malina) three times during its initial run in the early 60s, and no film adaptation half as long could claim its raw confrontational power. Echoing The Lower Depths and The Iceman Cometh, it's about junkies waiting for a fix (among them a performing jazz quartet with pianist-composer Freddie Redd and alto sax Jackie McLean), and spectators were even accosted in the lobby by one actor begging for money. Shirley Clarke's imaginative if dated 1961 film uses most of the splendid original cast (Warren Finnerty is especially good), confining the action to the play's single run-down flat. It's presented as a pseudodocumentary; the square neophyte director, eventually persuaded to shoot heroin himself, winds up focusing his camera on a cockroach. The film retains the same beatnik wit that the play effectively distilled, as well as a few scary shocks. With Carl Lee, Garry Goodrow, and Roscoe Lee Browne.