Andrew Boley’s review published on Letterboxd:
I saw this in a theatre for the first time. It makes a huge difference. I mean it's hard not to check your phone when you're at home while miniature space crafts hover through a fake space for 10 minutes at a time.
It's just so god damn ambitious. It's like human beings didn't make it... I feel a history channel special in the works.
Once you get sucked in it's impossible to turn away. The intermission popped up and everyone just stayed in their seats, no whispers, no bathroom breaks. Everyone just wanted to keep going.
The opening black screen and 5 minutes of music is just brilliant, the man is fucking brilliant! I don't care how many people have said it, but it's just incredible watching someone so out of his fucking mind brilliant playing with an audience. No movie will ever be made like it, it's truly a landmark of filmmaking.
There is a stretch of about 8 minutes which may be the most amazing 8 minutes in cinematic history. When Dave shoots himself into the airlock after HAL won't let him back in. To when the message ends about what the mission is actually about. That stretch is just absolutely incredible. I've seen this movie a dozen times and that stretch still makes me teary and gives me goosebumps. "I can feel it, I can feel it."
This movie was made 45 years ago! It's really hard to believe. It's a movie that will never be forgotten, it's a movie that has never stopped being talked about. It's probably the most difficult movie ever made. I wonder what Aliens would think after watching it....