git log of remote repositories.

Hello,

I have a local branch that is a tracking a remote branch. I want to see
what are the modifications upstream, _before_ I pull. I tried
'git log origin' but that's only the point from where I pulled last.

Is there a way to do that?

I see a --remote option in recent git versions, does it have something
to do with I want to achieve?

Thank you,

  -- aghiles