Martin Andersen wrote:

sidespin: Saw 2001: A space odyssey again yesterday. Still a great movie, but what happens at Jupiter ? Is he travelling through a wormhole ? How come he is much older when he arrives ?

I watched 2001 recently and hated it.  It was visionary and groundbreaking work when it came out but now it's just some space footage with some extremely annoying parts of the movie (ape scene mostly) without dialog.  The effects at Jupiter are horrible by today's standards.