Here is a simple bullet time function using the set camera fov function and the set camera to follow function.

The program stops warps the screen and rotates around the specified point.

the parameters needed are camno,fx,fy,fz,fa,fd,fh,s

fx = X position camera rotates about.
fy = Y position camera rotates about.
fz = Z position camera rotates about.
fa = Number of degrees which the camera rotates.
fd = The distance away from the centre.
fh = The height above/below the centre.
s = The speed at which the camera travels.

Enjoy...