Add an image as the camera background. Add or create a 3D object and make it move like it belongs in the photo. In short, you ...

Basic tutorial to Using Array in Blender, Slow and Fast motion. 00:00 Preview 00:23 Cube 01:03 Use Arrays 01:47 Reposition ...

I won't go into the details here - you should check out the tutorial yourself - but I will say that Blender compares well against any of the dedicated NLEs for Linux. Its movie-making capabilities ...