The surround track is a noticeable improvement, with the pops and hisses evident on the mono cleaned up for a more polished sound. Granted, this fifty-year old film isn't going to blow the roof off your home theater. But the mix is relatively natural-sounding and there is decent directionality across the front channels. The dynamics are fairly narrow, but the subtle surrounds provide some pleasing ambiance though there are no noticeable pans from front to back. Dialogue is natural sounding, though it does distort in the high end and drops some decibels in some scenes.
Music sounds fine, though the screaming, jazzy trumpets also distort.
There is a touch of bottom end, but it's pretty weak. Given the age of the material, this track still holds together just fine. Also included is a 2.0 French Mono soundtrack, with all of the songs dubbed in French, too. English Closed Captions and subtitles in English and Spanish are also provided. Supplements include a restoration comparison of the scene where Marilyn is stuck in a window, with explanations of the restoration process.