After all the hype about scientific accuracy I was excited to be wowed by it. I wasn't. Not only that I was irritated by a number of things. If all the hype hadn't got me in the mindset that I was about to watch one of the best done science plausible movies ever I could have given a pass on all this in exchange for being entertained. However, due to the hype I went in expecting that the entertainment value would be delivered in the form of scientific accuracy to delight my pedantic inner geek. I am disappoint.
Motion in Hermes #1: Everyone looked like they were flying on wires. Which they were, but after the astounding work done on Apollo 13 with weightless motion, the bar was pretty high and I expected better from 'one of the most scientifically accurate movies ever'. If not for that hype I wouldn't have been irritated by it because wires are the way it's done.
Motion in Hermes #2: When they were flying through the hub and got to the ring spokes, do I recall incorrectly or were the spoke access ports stationary relative to the hub? Shouldn't they have been rotating around the hub? (I admit I could be remembering wrong here.)
Motion in Hermes #3: Why were there curved trajectories every time someone went down into a spoke access port? You don't get sucked in like a vacuum cleaner hose. Granted there would be a slight breeze caused by air circulation and gravity does increase as you move from the hub centerline, but neither of those things could account for the radical accelerations seen in those scenes.
Growing potatoes: Wouldn't they have been irradiated prior to stowage due to the long storage time and therefore no longer be viable?
Gut bacteria = composting bacteria?: I don't know about this one but it seemed not right to me. I find it difficult to believe that the gut bacteria in his crap would have been suitable for composting said crap for use as fertilizer and be safe for application to food. Seems a stretch, but maybe someone could correct me if I'm wrong.
All this said, I will sustain one point of hype: the 3D was very well done. Not obtrusive, felt natural (camera focus was always at story focus), and most of the time I never thought about it. Very nice.