If you haven't seen the Tech-Recipies site yet, you should check it out. Nice compact, useful and interesting posts about how to do useful and cool things. I found it via my Twitter account feed. I'm finding lots of good stuff via Twitter these days.

I just finished reading a post at Tech-Recipies that describes how to use QuickTime Pro to remove the dead space often seen in videos that are letterboxed or have the side curtain bars (pillars). Essentially you use a simple image mask to define and remove the extra space, nice and simple.

Check out the tutorial at this link, or watch the hi-res screencast here.