Stamper was pretty much on the money. Apart from everything else being wrong in the movie, having short arsed Sly play Dredd AND remove his helmet is kinda like finding out Halo Jones was a tranny. Could be worse though, they could have had John Travolta or Danny Devito in the role :/
In my opinion, that whole movie was pretty much just another Hollywood travesty.
BTW, Dredd didn't have his helmet in 'The Dead Man' series.