TVShowsOnDVD.com has preview clips for Grey's Anatomy: The Complete Fifth Season DVD, being released today, September 15. Grey's Anatomy's 5th Season had Jeffrey Dean Morgan reprising the role of 'Denny Duquette'.
Morgan can be seen in 3 of the video clips, including a special "Finding Denny" clip, on the casting of Morgan for the role.
Source: TVShowsOnDVD.com.