Hagrid: [to Lupin as he holds Harry up against the wall of the Burrow with his hand and at wandpoint] Lupin!
Ginny: What are you doing?
Lupin: [Holds Harry up against the wall of the Burrow with his hand and at wandpoint] What creature sat in the corner the first time Harry Potter visited my office in Hogwarts?
Harry: ARE YOU MAD?
Lupin: WHAT CREATURE!?
Harry: A-A Grindylow!
Lupin: [releases Harry] We've been betrayed. Voldemort knew you were being moved tonight. I had to make sure you're not an impostor.
[Harry nods in agreement]
Ginny: What are you doing?
Lupin: [Holds Harry up against the wall of the Burrow with his hand and at wandpoint] What creature sat in the corner the first time Harry Potter visited my office in Hogwarts?
Harry: ARE YOU MAD?
Lupin: WHAT CREATURE!?
Harry: A-A Grindylow!
Lupin: [releases Harry] We've been betrayed. Voldemort knew you were being moved tonight. I had to make sure you're not an impostor.
[Harry nods in agreement]
Hagrid : [to Lupin as he holds Harry up against the wall of the Burrow with his hand and at wandpoint] Lupin!
Ginny : What are you doing?
Lupin : [Holds Harry up against the wall of the Burrow with his hand and at wandpoint] What creature sat in the corner the first time Harry Potter visited my office in Hogwarts?
Harry : ARE YOU MAD?
Lupin : WHAT CREATURE!?
Harry : A-A Grindylow!
Lupin : [releases Harry] We've been betrayed. Voldemort knew you were being moved tonight. I had to make sure you're not an impostor.
[Harry nods in agreement]
http://www.moviequotedb.com/movies/harry-potter-and-the-deathly-hallows-%96-part-1/quote_48905.html