- In the scene where Harry shouted as Sirius Black died, he screamed so painfully that it was muted. Daniel Radcliff said it is because he is afraid that he will never be able to see Gary Oldman since he is his idol. Also, his grandmother passed away.
- When Harry was teaching the spell to the DA’s members, he wore his clothes the way Remus Lupin would. It is Daniel Radcliff’s idea.
- When Harry and Cho Chang kissed, there was a picture of Cedric Diggory staring at them.
- The actor of Voldemort, Ralph Fennis, asked the wand to be hooked-shape, so he can slither like a snake.
- As Dorles Umbridge got more and more power, her outfits became more and more pink.
- Sirius Black said “Nice one, James!” since he always sees Harry Potter as James Potter.
- There are wizard neamed breakfast such as “Cheerie-Owls” instead of “Cheerios.’
- Someone in the background bumped into Thestral but they can’t see it.
- Ginny Weasley wore pants instead of shirts since they were hand-me down by her brothers.
- There is a starbuck tapestry on the black family wall.
