Rotate image 180 deg.?

In a fit of brilliance, I left my Prism helmet cam on invert (to use a window mount that inverts the camera) and then shot video on my motorcycle. Oops. How do I rotate the image 180 deg.? I found a how-to for 90 deg., and thought I’d do two rotations. It looks as though the image is cropped after the first rotations.

In the Rotate filter, set Rotation to 180.0.

[/wince] RTFM, Emerson, RTFM

Thanks for putting up with a newb question.