I recently re-watched STIII:TSFS (I know it's generally regarded under the "odd-numbered curse", and not as well liked as other Trek movies, but it was the first one I saw in the theatre so I have a soft spot for it.)
This time, however, I noticed a little tiny detail that I'd never seen before. The Merchant vessel at the beginning that is escorting Valkris, soon-to-be-destroyed by Kruge, has an alien crewmember. You only see (him?) for a split second as the ship is exploding. I'd never noticed before.
Isn't it kind of odd to spend all the time it takes on alien makeup for that actor, only to show the character for less than a second as he's about to die?