Why do you look so miserable

Professor Lupin:
Why do you look so miserable, Harry?
Harry:
None of it made any difference. Pettigrew escaped.
Professor Lupin:
Didn't make any difference? Harry, it made all the difference in the world! You helped discover the truth. You saved an innocent man from a terrible fate. It made a great deal of difference.

Transcript:
Why do you look so miserable, Harry?
None of it made any difference.
- Pettigrew escaped.
- Didn't make any difference?
It made all the difference in the world.
You uncovered the truth.
You saved an innocent man
from a terrible fate.
It made a great deal of difference.
If I am proud of anything...
...it is of how much
you have learned this year.
Now, since I am no longer
your teacher...
...I feel no guilt whatsoever
about giving this back to you.
So now I'll say goodbye, Harry.
I feel sure we'll meet again sometime.
Until then...
...mischief managed.

Clip duration: 58 seconds
Views: 62
Movie: Harry Potter and the Prisoner of Azkaban
Year: 2004
Genres: adventure, family, fantasy, mystery
Summary: It's Harry's third year at Hogwarts; not only does he have a new "Defense Against the Dark Arts" teacher, but there is also trouble brewing. Convicted murderer Sirius Black has escaped the Wizards' Prison and is coming after Harry.