Hi Kale,
Animation Paper will soon be able to import mov and mp4 files directly. But that doesn’t help you now 😉
So I would convert your mov file to a sequence of png files. Those can easily be imported. Just go to File -> Import and click the first png and Shift-click the last one, to select them all and import. You will automatically get a reference layer with your pond area camera movement.
Best,
Niels