Quote from : Harry Potter and the Goblet of Fire Movie

Professor Moody: Let's have another curse. C'mon, c'mon.
[Neville's hand slowly goes up, and Moody calls on him]
Professor Moody: Longbottom, isn't it? Professor Sprout tells me you have an aptitude for Herbology.
Neville: Th-there's um... the Cruciatus Curse.
Professor Moody: Correct! Correct! Particularly nasty.
[he leads Neville up to his desk and puts the spider down in front of him]
Professor Moody: The torture curse. CRUCIO!
[the spider begins to squeak and writhe in pain. Neville flinches, almost unable to watch as the spider continues to curl itself up in agony]
Hermione: Stop it! Can't you see it's bothering him? STOP IT!
[Moody lifts the curse, and again palms the spider. Neville is left standing at the desk, looking shell-shocked]