bug - friends ratings?

When looking at my friends DVD's, I don't see more than 5 stars? Is it translating the 10 star rating system down to a 5 star rating system? If so, it makes it hard to understand, I'd think you want to be consistent with ratings no matter where you are on the site. Or is it just a bug?

Is it translating the 10 star rating system down to a 5 star rating system?

That is exactly what it's doing. It's not a bug, just currently how its implemented.