Lead by powerful performances by Robert Blake and Scott Wilson , competently directed by Richard Brooks ( Cat On A Hot Tin Roof , The Professionals ), beautifully shot (and featuring iconic imagery) by master cinematographer Conrad Hall and bouncing along with a jazzy score by Quincy Jones , In Cold Blood , famously based on Truman Capote's book, is a mostly excellent film and has all the trademarks to be a true bona fide ***** classic, but falls short (for me), due to being slightly overlong, the shifting narrative, odd extended tonal switches and weaker performances by supporting actors. But man , those images...