UPDATE: Here's a run-down of these posts to keep everyone on the same page

elorianne had a post about her problems with the film, Across the Universe - Prudence, Lucy, and several other things - here.

I attempted to explain some of these issues - no constancy, no explanations, etc. - here.

her response to my post, with a focus on Prudence, here.

my hypotheses on Prudence's role in the film, or lack thereof really, here.

It's quite fun, really =)