Strange movie
I was entertained throughout and it had a lot to recommend, but I understand why some people would consider it a mess. First of all, it's way too long. I wasn't bored, but there was so much that seemed unnecessary and distracting...Duke Ellington's cameo, to name just one egregious example. Definitely NOT a tight movie by any means.
More importantly, there was something really, well, "off" about it. Anatomy of a Murder treats rape more flippantly than any other film I've ever seen; to the point where I was expecting there to be a twist, i.e. she wasn't raped. In fact the film gives us so much food for suspicion and so little information about what actually happened, that I was surprised, like many other viewers, when the movie ended so anticlimactically. Also odd was the casualness with which Stewart feels he can ask the dead man's daughter to consider him a rapist, and then the ease with which she appears in court to reveal him as the rapist. And, it bears repeating, the joky, easy manner in which every character in the film, including Lee Remick herself, discusses the brutal rape of the wife. At one point the judge even says something to the effect of, "Stop laughing! There's nothing funny about a pair of underwear which led to one man's death and may lead to the other being executed!" Gee, let's forget all about the girl who the underwear belonged to!
The characters in the movie seemed way too casual about pretty much everything that happened. It was easy to watch and was entertaining, so I can't say I'm sorry I rented it, but I fail to see the overall point of this venture.