Sometimes there are films made where it splits it's audience into two categories: those who get the film, it's ideas and everything about it; and those who don't get it at all and view it in quite a negative light. This is one of those films.
I can guarantee that this film is unlike anything you've ever seen in your life; it is a unique piece of cinema and an outstanding historical achievement of the film industry. But goodness me, this isn't for everyone. The plot is anyone's guess but it's set in space. The thing is the cinematography is so unique and amazing, especially for the 60's, you can see that it has obviously influenced films from then on even to today. The problem is though, it's just so boring! The majority of the film is made up of very long, extended shots of space, or the ship, or travelling through another dimension with these epic pieces of music behind it. If your into classical music, or that genre of the arts then this is amazing. But for the majority then this is a very slow, long and uninteresting 160 minutes of your life.
The only positives I have to say is that the H.A.L. 9000 computer is the best part and the special effects are pretty good even now. In the end I'm not surprised that 241 people left in the middle of the premier but glad it exists because it's inspired so many of the biggest blockbusters that we've come to know and love.