Build a movie plot around this: What is Veritaserum? a truth telling potion
A:
Further information: Plot of the novelHarry Potter dreams of Frank Bryce, who is killed after overhearing Lord Voldemort discussing plans with Peter Pettigrew and another man. Harry attends the Quidditch World Cup with the Weasleys, but after the game, Death Eaters terrorise the spectators, and the man who appeared in Harry's dream summons the Dark Mark.At Hogwarts, Albus Dumbledore introduces ex-Auror Alastor "Mad-Eye" Moody as the new Defence Against the Dark Arts teacher. He also announces that the school will host the legendary event known as Triwizard Tournament where three magical schools are going to compete against each other in a very deadly competition by facing three dangerous challenges. The champions are selected by the Goblet of Fire: Cedric Diggory of Hufflepuff is chosen to represent Hogwarts, Viktor Krum will represent Durmstrang Institute, and Fleur Delacour will represent Beauxbatons Academy of Magic. The Goblet unexpectedly chooses a fourth champion: Harry Potter. Dumbfounded, Dumbledore is unable to pull the underage Harry out of the tournament, as the Ministry official Barty Crouch Sr. insists that the champions are bound by a contract, and therefore, Harry is invited to compete. This makes Harry's best friend Ron Weasley jealous of him.For the tournament's first task, the champions must each retrieve a golden egg guarded by a dragon. Harry succeeds after he summons his broomstick to retrieve the egg, which contains information about the second challenge. Shortly after, another event known as the Yule Ball dance takes place, during which Harry's crush Cho Chang attends with Cedric, and Hermione Granger attends with Viktor, which makes Ron jealous of Viktor. During the second task, the champions are instructed to dive underwater to rescue their mates. Harry comes out in 3rd place but is placed second behind Cedric due to his "moral fiber". Afterwards, Barty Crouch Sr. is found dead by Harry. Harry visits Dumbledore at his office, and while waiting for him, he discovers a Pensieve,...