You can’t have an explosion in a movie without a big bang, even if that explosion comes from a starship drifting through the vacuum of space. If the USS Enterprise is anywhere nearby, it’s also likely to be buffeted by the pressure waves, and the crew thrown across the bridge.
In a similar vein, it was one of the Weta Workshop guys in the ‘bonus features’ on the Lord of the Rings DVDs whom I first heard point out that swords, coming out of wood-and-leather scabbards, somehow always make a zzzhinggg sound. Whereas in fact…
Well, I’ll let this chap demonstrate:
Thanks to James Fraser for the link!