Not to derail the thread, but;
So they do that to US books in England? When Harry Potter and the Sorcerer's Stone was release here, instead of "Philosopher's Stone", I thought maybe its because publishers thought Americans where too dumb. We'd think it was about philosophy instead of wizards.
But if we religious American's can take a reference to a bible verse (Matthew 7:3) then why can't the enlightened British? That seems like a clunky title to me, and while it is a literal allusion to a vital plot element, seem inelegant.
So is it a copyright thing? Which seems odd in itself...