Animating along a path

I used a teapot object and then drew a path for the teapot to follow. With the teapot selected I went to Animation>Constraints>Path constraints and then selected the path that I had created.

In the motion panel under path parameters, I checked the follow and bank check boxes to make the teapot rotate to follow the path and make it bank into the corners.

The same method can be used with a camera to make it follow a path. With a target camera the target point can be made to follow the the path or the camera by selecting the separate part then using the path constraints.

Rendered animation of the teapot following a path