Goodbye bloody hands? Hermione cleans up for new Deathly Hallows trailer

Something I noticed from the stills that were released ahead of the Deathly Hallows trailer: Warner Brothers seems to have washed Hermione’s hands since the original trailer appeared on the Half-Blood Prince DVD.

As you can see from this side-by-side comparison I made, the trailer of the Half-Blood Prince DVD shows Hermione’s hands quite bloody.  In the trailer set to be released today, her hands are squeaky clean.

Is Warner Brothers doing this to keep the rating for the film lower than R or PG-13?  It’s one of the things we’ll discuss on our live MuggleCast today at 9 PM ET on Ustream.