Ere I am JH’s review published on Letterboxd:
Maybe this isn't fair, but I couldn't help but associate Ad Astra with Joker. If Joker is a shallow remix of Taxi Driver and King of Comedy, Ad Astra is a bland smoothie of Solaris and Apocalypse Now, with a cavalcade of stars you may remember from Space Cowboys and Armageddon. I half expected Harrison Ford to be revealed, standing in a corner, creepily ordering Brad Pitt to "terminate, with extreme prejudice" -- so it's more Apocalypse Now than 2001: A Space Odyssey, which at least had the decency to have jokes.
But really, Ad Astra is merely the story of an emotionally repressed mope, working through his daddy issues by haphazardly murdering a bunch of people just like his dad did -- as if they were mere bureaucratic red tape stopping the only person in the universe that can save the universe from saving the universe -- and then, having saved the universe, finally becoming ready to open his heart to Liv Tyler. Anybody out there have any empathy for someone who can't open their heart to Liv Tyler? Pure fiction!
And as for its pseudo-sciencey verisimilitude, somewhere, Kim Stanley Robinson is banging his head against his writing desk.