Okay, here's my first submission. I think that I've avoided spoilers.
Of course, we have sounds in space. Lots of sounds.
There is a rotating starmap shown at one point. The scale appears to be way off (sparsely populated by stars, some of which have very wide and dense asteroid belts, and there is one thing which looks like a puny spiral galaxy, all in close proximity).
Many places have gravity (people sticking to floor) when it seems quite unnecessary (even though there are gravity generators). It's almost at a point where AIR = GRAVITY. This probably happens a lot in other films.
One point in the plot involves visiting some sort of dense rotating system of very large ice crystals. They keep colliding with each other so often that they should already be well pulverized.
At the end of the movie, an earth-sized planet is formed from the system which has the ice crystals. It appears to have formed in less than a year!
When they are forced to jump into the vacuum of space, Corso tells Kayle to exhale, and they don't suffer *any* ill effects other than colliding with their destination. Watch how the gravity turns off only in the vacuum though.
"I'm finished my nap!"