Any script would have to be fine-tuned to fit in your particular module, there are just so many little things that can go wrong, and so many little things that you'll want to tweak, that it's impossible just to give you a script that will work without you basically re-writing the whole thing.
For your needs, though, try messing around with the conversation editor and some static cameras. You can't exactly manhandle the camera like Spielberg, but it's relatively easy to set up static shots and then pan or track to follow a creature (even an invisible creature, as suggested by rjshae).
Moving an object is much more difficult, and an environmental object can't be moved at all. What exact kind of object do you want to move?
It'd be tricky, but I would try to create a bit of walkmesh that follows the path you want the object to follow, maybe with just a walkmesh helper ramp just hanging out in midair. Then I'd create a creature that looked like the object, maybe by creating a custom VFX and sticking it on a tiny creature. Then you can move the creature about with a script.
Honestly, though, I'd probably just try to fake the movement with clever camera angles.