The Scene: 'Potter's' 'I killed Sirius Black'

(CNN) -- "Harry Potter and the Half-Blood Prince" hit thousands of theater screens across the country at midnight Wednesday.
Since then, fans have been buzzing about some of the film's most impressive scenes -- including one called "I killed Sirius Black."
In the scene, Potter is confronted by Death Eater Bellatrix Lestrange, who is creating mischief for both the boy wizard and his latest crush, Ginny Weasley. (Death Eaters are followers of the series villain, Voldemort.)
Exhilarating for some, but frustrating for others, this particular scene from the franchise's sixth installment is a cinematic creation, as it never occurs in the J.K. Rowling novel.