Ziz said:
That's called "dramatic license". We don't need the audio cue to tell us that Vader was told the ship is clear. We see the ship clear, then we see Vader go to talk to Palp. Why else would he be moving?

A movie isn't a football game where you have to see every fraction of a nano-second documented and re-counted 87 times over before moving on.

So does that mean we won't get the scene where Vader and co. are waiting an hour or two for Leia to get out of the bathroom before the Cloud City dinner?

Could you imagine some of the real-time filming you would have if you had to follow Vader around on the Executor or Death Star? You'd have a day's worth of film of him walking around... no wonder he breathes like that! It's like Tarkovsky's SOLARIS and the 10+ minute car ride in the beginning of the film.... yeesh!