Well, I should be getting paid by the producers for all the shilling I'm doing with everyone I know, so I def. agree everyone should see it, but I do think that the idea of a re-interpretation should not be predicated on the audience having knowledge of the story.
In Shakespeare, the text usually has enough exposition to keep the newbies up to speed, if they are paying attention, but Sweeney communicates a fair amount through very dense lyrics and (in the original) staging, which is--obviously--missing here.
To clarify, my virgin companion LOVED the show and has bought the sountrack and will soon know all. I believe this production is good enough to inspire that in a lot of people, too.
"They have never understood, and no reason that they should.
But if anybody could . . . " --SS