Things I noted down whilst listening to your commentary
Dredd's expression - in the comics he wears shoes that are one-size too small, not sure why though.
The elevator inconsistency thing - looking back it appears that her finger was on the trigger and he puts his hand over the top of her hand so would be able to activate the gun by pressing down on her finger - kinda like someone unworthy picking up Thor's hammer by picking up Thor whilst he is holding the hammer (ish)
The sentence fitting the crime thing - one of the comic stories is set at a blood donation center, man is scared of needles, runs away, steals a blood transportation van (full of blood) to aid his escape, van crashes and blood is ruined. Dredd sentences him to the IsoCubes where he must remain until he has repaid the blood, and at 1 pint a day (or maybe a week) that will be quite a long time (it was a big van).
What spoilt the movie for me was, having seen The Raid some months before, I was waiting for the time when Dredd dropped his gun, or run out of bullets, and had to go up against a room of baddies armed only with his two fists and night stick, so we could have seen just how tough and bassass he is - but it never happened.
The thing I don't get is, if they needed it to make $50 million in the USA for them to get their sequel (which would have deatl with the corruption in the force and Dredd venturing into the Cursed Earth), and I know hindsight is 20-20, but why take a character who is pretty much unknown there and saddle the movie with the more expensive 3D ticket price and 18 certificate ? If they'd ditched the 3D and gone for a 15 (they have 15 in USA, right ?!) wouldn't that have widened their possible audience by being more enticing - no being asked to pay extra for the glasses to see something you know barely little about. Then they could have brought out an unrated version for the DVD/BlueRay market. (appeaseing all the 2000AD fans up in arms about the 15 certificate)