Movie Question

I recently took several short movies using my SD300 camera. Foer one of the clips, I turned the camera vertically.
All clips look fine, except that the one I took in vertical orientation plays back in horizontal orientation (using Intervideo Win DVD for playback).
How can I rotate the orientation of this movie clip so that it plays back the way it was shot (vertical orientation)?
Thanks.

You'll need some kind of editing software to rotate and re-render the footage.

There is no "portrait" orientation in video.

ISTR that Canon's Zoom Browser has the capability of correcting that. There've been threads about it on here, I know.

Yep. Here.

Jon,
Thanks so much for the link. I guess I should have done a thorough search before asking my question.
I was able to use Movie Maker (one of the suggestions) to rotate the video.
Thanks again.

No problem. I've been around long enough to know that there's an answer to almost any question on here, somewhere. And sometimes they're even correct answers at that!