In 1966, Truman Capote scared the hell out of America with a novel containing brutality that most hadn't heard of before, much less read about. A year later, Richard Brooks adapted the novel for film and threw it in the faces of the rest of them that didn't read much. The film is incredible and lost the Oscar for Best Picture only due to The Graduate having a more accessible commercial appeal.
What I always found most notable about the picture was Quincy Jones outstanding score. The same man who was well known for his happy, bouncy big band feeling soundtracks dug deep into his psyche and manifested a true evil, a fear at the heart of all men and the first truly menacing jazz score.
This was also a true breakthrough for black composers in Hollywood. Jones had just done the music for In the Heat of the Night and although this was more popular with the mass audience, critics were more focused on his work with In Cold Blood, in which he really pushed the envelope, creating a genuinely disturbing theme. This is a magnificent achievement.
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