No. With the exception of the special effects, it did nothing for the movie. I didn't think it was emotional, it didn't add to the plot, and it wasn't even brought up after that.
Also, if the Death Eaters knew where Harry was, why didn't they either A) kidnap him and take him to Voldemort - it's not like they didn't have plenty of opportunities while chasing him around the cornfield یا B) send Voldemort after him?
Yes, I liked it. All فلمیں have to have that "oooohhh aaaahhhh" factor in them, I think that's the only reason why it was added. I did like that Belletrix got مزید scene time too. I guess I've just recently excepted that the فلمیں are never going to be just like the کتابیں and to just enjoy it to enjoy it.
I remember watching the movie in theaters and I saw this scene and I was thinking, "What the hell? This wasn't in the book!" I'm uptight when it comes to putting scenes in فلمیں that didn't happen in the book. The scene didn't really make sense because I'm pretty sure the death eaters wouldn't have let Harry get away, but I did enjoy the scene. I would prefer they didn't add it into the movie though.