These sneak peaks contains cast interviews, some behind the scene footage and bunch of very small CCTV footages of HBP. These are-
Draco Cursing Harry on the Train (He says 'Petrificus Totalis')
Harry saying 'If did find them all, you destroyed each of the Horcrux' to Dumbledore.
Daily Prophet having headline of 'Death Eater Attack Targets Muggles'.
Harry and Ginny about to kiss. (lovely)
And much much more. So watch it :-