Judging by the trailers, the principal emphasis is on the moody B&W look and other atmospheric film noir details, of which the sotto voce dialogue would be a part.
For contrast, try Kenneth Branagh's filmed version of a stage performance of Macbeth, from 2013.
Even better, for the ultimate Shakespeare movie experience, try Branagh's Henry V. Be sure to play it through a quality audio system or home theatre, as it has an excellent originally composed score that runs throughout.
It also bears saying that some actors train for half a lifetime to perform Shakespeare, so being a successful screen actor isn't a guarantee of equally successful "crossover" success.