Matthew Lewis and Evanna Lynch have both laucnhed the upcoming release of the Half-Blood Prince DVD by releasing 1000 balloons over London today. This kicks off the contest that is open to anyone in the UK that is over 18, anyone who finds one of these balloons will have to simply follow the instructions on the card attached to the balloon and be entered into a prize draw which could see them winning a trip to the Deathly Hallows set!

Today, Warner Brothers announced the official release date of Half-Blood Prince on DVD. As previously thought, it will be coming on DVD in December, December 8th to be exact. All fans in the US can look forward to getting a copy on that day.