Trivia: Domhnall Gleeson, who plays Bill Weasley, is the son of actor Brendon Gleeson (Mad-Eye Moody).
Trivia: The scene where Harry, Ron, and Hermione jump into the fireplace to escape from the Ministry was the very last scene to be filmed for the Harry Potter film series.
Trivia: Sophie Thompson, who plays Mafalda Hopkirk, the Ministry of Magic employee that Hermione impersonates using polyjuice potion, is the sister of Emma Thompson, who plays Professor Trelawney in the series.
Trivia: This was the first of the Harry Potter movies to have JK Rowling as a producer.
Answer: Lucius and Bellatrix were unable to confirm Harry's identity because Hermione had jinxed his face to disguise him just before the snatchers captured them. They are fairly certain it is Harry, but as Bellatrix says, if they summon Lord Voldemort, and they are wrong, he will kill them all. Of all the Death Eaters at Malfoy Hall, no one knows Harry better than Draco, having spent more time with him because they were schoolmates. Lucius and Bellatrix have to be absolutely sure that this is Harry Potter.
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