[HPFGU-Movie] POA foreshadowing DH?

[Valerie Flowe]

> spoilerish to DH

>  >akh pipes up:
>  >In a closer-to-movies, vein, now that we have all the books,
>  >I've been ruminating over the parts of POA that gave JKR
>  >'chills' when she watched the movie for the first time. I had
>  >limited myself to visuals, since in theory she would have
>  >known in advance about the dialogue, but now I'm rethinking
>  >that position. I had already decided that one of them was
>  >Buckbeak attacking Lupin, in anticipation of his attack in
>  >book 6, but do y'all think the bridge scene with Lupin and
>  >Harry is another, even though it's really the dialogue that
>  >foreshadows 7? Maybe Cuaron asked for that scene as a pickup.
>  >
>  I think she always said the scene on the bridge was very telling.

I'm confused. Where does Buckbeak attack Lupin in Book 6??
And how does the Lupin/Harry bridge scene foreshadow DH? Lupin is 
talking about Lily and James; how Harry is like his dad and mom. There 
was some speculation that Lupin might've been in love with Lily. As it 
turns out it was Snape. I guess I'm not seeing the foreshadowing that 
JKR is talking about. Can you elaborate?
Valerie