Here's an image from a clip that I plan on using, first in its original 4:3 aspect ratio:

Here's the same image from the clip with 78 pixels cropped off the top and bottom, now with a 16:9 AR:

This doesn't look very good. So I've been trying to come up with other solutions. Is there a way to "pan" from the bottom of the clip upwards to the top? Essentially, what I want to do is begin the 4-second clip at 0:00 with this:

have the "camera" pan up from the bottom of the top of the original 4:3 frame and end with this:

(note that the motorcycle is moving from left to right in this clip)
I hope I'm making sense, I don't know how better to describe what I'm looking to do here.
The clip, for whatever its worth or anyone who wants to see it, is here: http://www.mediafire.com/?r8796ulk1e5zd5d