Curio facts though these may be, it does make some interesting insights into the origins of IMDb on usenet.
nm0000001? Never heard of him.
But you’d be under quite a rock to have never heard of Fred Astaire, whose unique identifier at IMDb is the lowest number for a performer. Similarly, the lowest ID number for film names is an Edison Kinetoscope of a “Spanish Dancer” called Carmencita. The fictional holder of #000000001 is notable outlaw Jesse James.