Nonsense!
3 seconds sound clip from the Harry Potter and the Sorcerer's Stone movie soundboard.
You can hear this line at 01:27:35 in the Blu-ray version of the movie.
Quote context
[...]
- Looks like he's gonna be sick.
- Harry Potter receives 150 points for catching the Snitch!
- Why would Snape put a curse on Harry's broom?
- Who knows? Why was he trying to get past that three-headed dog on Halloween?
- Fluffy?
- Of course he's got a name. He's mine.
- I bought him off an lrish feller I met down at the pub last year.
[...]