The clip The stone is defended from Harry Potter and the Sorcerer's Stone (2001)
Don't wish to be rude, but I'm in no state to entertain.
We know about the Philosopher's Stone.
We think Snape's trying to steal it.
Are you still on about him?
We know he's after it. We don't know why.
Snape is one of the teachers protecting the Stone. He won't steal it.
You heard. Come on, I'm a bit preoccupied today.
Wait a minute. "One of the teachers"?
There are other things defending the Stone, aren't there?
Waste of bloody time, if you ask me.
Ain't no one gonna get past Fluffy.
Ain't a soul knows how, except for me and Dumbledore.
I shouldn't have told you that. I should not have told you that.