You can make your own if you have both images. It might be easier than tracking down a clip that you like.
Here is an example of a slide action I did with key framing at the very end of my "Bridgeport" show - length = 6:42 min. There was a bird in the scene when I took the picture. I cut him out, photoshopped the picture to cover him up. Then I reintroduced him as a png file and made him fly.
You will have to experiment on your own with key frames and such to make it work the way you want because your images will be different than mine.
In order to get a feel for the bird flying away, I unlocked the x & y and played both with the zoom, rotation and smoothing a bit.
http://www.photodex.com/sharing/viewsho ... 9875&alb=0
Debbie