And this is the video that started all this trouble.
GetraeumteWelt-If I Can't Have You (Forgive the old school music)
I also found a lovely video about the Black Sisters. Pay close attention to the cast list or it does get confusing.
Bellatrix: Rachel Weisz/Helena Bonham Carter
Andromeda: Keira Knightley
Narcissa: Rosamund Pike/Kate Winslet
Roldolphus: Johnny Depp
Ted Tonks: Matthew Macfayden
Draco:(little boy being kissed)