I'm a lucky soul who got the very first DVD's of the new directors cut! And overall, it's even better than the original! Actually, there's not a whole lot of difference. It plays nearly the same, but is jazzed up a bit visually and one so-so bit with a studio receptionist is cut. But most importantly, it has a better ending. Watch the director's cut here.
Oh, and after watching this, then re-watching the original, then re-watching the ending of the director's cut, I'm forced to ask. My favorite Guidolon joke was that he starred in the TV show "Guidolon The Giant Space Chicken and Friend Half-Power Half Hour". But that's nowhere in either version of the movie. Was that joke only written for the advertising cards, or did it originate elsewhere?