Hartnett and Christensen On Again!?

4/17/2009 2:05 PM PDT BY TMZ STAFF
To be or not to be ... seen with Josh Hartnett? That is the question.

Josh Hartnett -- play video

Our photog spotted Josh and ex GF Helena Christensen going in and out of several different places yesterday (including her apartment) -- but always at different times ...

Why don't beautiful people like being seen together?