Good to see Firefly get a couple of mentions here, as they worked very hard to not have sound in space, and it's very eery in places. They do also try and work with the fact that, even if you are in a spaceship in space, if something knocks against you, you will hear it.
There is still a questionmark over the space battle in Serenity - some argue that you can only hear sounds from within the ship, others argue that the battle takes place within the high atmosphere of the planet. Either way, there are still some nice "silent in space" moments in the film.
The gravity thing is an issue (ref comment 35 and others), although I suspect it's a practical consideration for the studios. Certainly in the pilot for Firefly the actors are weightless even when entering the ships airlock, and only regain weight when the pressure has been equalised and (presumably) the gravity "switched on". Later in the series, in the episode "Out of Gas", when they blow out a good chunk of the air in the ship to remove a fire, the gravity remains as normal even with the ship running out of air, which is good to see.
There is still a questionmark over the space battle in Serenity - some argue that you can only hear sounds from within the ship, others argue that the battle takes place within the high atmosphere of the planet. Either way, there are still some nice "silent in space" moments in the film.
The gravity thing is an issue (ref comment 35 and others), although I suspect it's a practical consideration for the studios. Certainly in the pilot for Firefly the actors are weightless even when entering the ships airlock, and only regain weight when the pressure has been equalised and (presumably) the gravity "switched on". Later in the series, in the episode "Out of Gas", when they blow out a good chunk of the air in the ship to remove a fire, the gravity remains as normal even with the ship running out of air, which is good to see.