I think I commented on this in a comment over on my blog--I think once the supplemental results folks saw this happen, they quickly fixed it. The screenshot you mention has the search [site:alacrastore.com voxant] and doing that search now looks fine; everything is from alacrastore.com.
Aha, here it is: http://www.mattcutts.com/blog/video-crawl-dates-in-the-google-cache/#comment-83727 "TxRex, they’re aware of this and it’s not a huge deal, but the supplemental results team is fixing it as we speak."
So it was reported a few days ago. Let me know if you see any other examples like that--thanks Barry!
I hope Google Webmaster Central team is on this issue.