Well, if you select all actors you need in some other map (actors involved in Matinee scene), during making prefab small window will pop out with this sign: "Found unrealkismet sequence for this prefab. Make sequence part of prefab?"
If we choose YES, then whole Matinee scene with involved actors, including animated camera, will become a prefab and carry over to some other map.
Yeah, I'd go with a PreFab as well (as it does carry associated Kismet, once setup correctly). Make sure your camera's movement is set to "relative to world" (and not "relative to initial") to have it snap to the same co-ordinates each time you drop it in the level.