Harry Potter and the Philosopher's/Sorcerer's Stone Movie Trivia  

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• Robbie Coltrane was the very first person to be cast.
  
   
• Richard Harris only agreed to taking the part of Albus Dumbledore after his eleven year old granddaughter threatened never to speak to him again.
  
   
• Author J.K. Rowling insisted that the principal cast be British and she got her wish, with two exceptions - Richard Harris was, of course, Irish, and Zoë Wanamaker, though she has made her name as a "British" actress, is actually a US citizen. Other non-Brits in the cast include Verne Troyer, born in Michigan, USA, who plays Griphook (the second Goblin in Gringots' Bank) and Christopher Columbus' daughter, Eleanor, who played Susan Bones.
  
   
• Steven Spielberg was offered the position as director, but was later refused when he couldn't agree with JK Rowling's insistence on an all-British cast. He wanted to use Haley Joel Osment for the part of Harry.
  
   
• In addition to Steven Spielberg, other candidates for the director's job were Jonathan Demme, Brad Silberling and Terry Gilliam. Gilliam was Rowling's initial favourite but the studio finally picked Chris Columbus to direct because he had experience directing child actors. Columbus was also asked many times by his daughter to direct and he agreed after he read her book.
  
   
• The trouble-making poltergeist Peeves (played by Rik Mayall) does not, in the end, appear in the movie.
  
   
• Although Daniel Radcliffe's voice broke during production, he did speak all the lines in the movie. The scenes were filmed in order and his voice changes slowly throughout the movie. It was erroneously reported by a London tabloid that a young actor who spoke lines for the action figure dubbed his lines in the movie.
  
   
• There was a huge media outcry in Gloucester, England when it was decided to use the local Cathedral for some of the Hogwarts scenes. Protesters wrote letters by the sack-load to local newspapers, claiming it was blasphemy and promising to block the film-crew's access. In the end, only one protester turned up.
  
   
• The movie is known as "Harry Potter and the Philosopher's Stone" everywhere except the USA and so every scene in which the Philosopher's Stone was mentioned was filmed twice, once with the actors saying "Philosopher's" and once with the actors saying "Sorcerer's".
  
   
• The hut used during the filming as Hagrid's hut has since been demolished in case fans of the film swamped it.
  
   
• The tabby cat used ran away during filming and came back two days later.
  
   
• Platform 9 3/4 was filmed at Kings Cross, but on platforms 4 and 5. J.K. Rowling has admitted that she mixed up the layout of London's King's Cross railway station when she assigned the Hogwarts Express to platform 9 3/4, reached by using magic between platforms 9 and 10. She meant the location to be in the Inter-City part of the station, but 9 and 10 are actually among the rather less grand suburban platforms. The movie conformed to Rowling's original intent: the platforms seen as 9 and 10 are in real life inter-city platforms 4 and 5.
  
   
• During filming, actor Daniel Radcliffe changed the screen on Robbie Coltrane's cell phone to Turkish. Coltrane had to phone hair designer Eithne Fennel's Turkish father in order to find out the Turkish for "Change Language".
  
   
• At one point, when Harry, Ron, and Hermione are approaching Hagrid, he can be seen playing a wind instrument. He is playing the Hedwig's Theme.
  
   
• Among the portraits on the shifting staircase, you can clearly see a painting of Anne Boleyn, King Henry VIII's second wife and the mother of Queen Elizabeth I. Anne Boleyn was popularly believed to be a witch.
  
   
• This movie has the distinction of opening on more screens in the USA than any other (3762).
  
   
• By February 2002 this was the second highest grossing film worldwide after Titanic.
  
   
• Harry Potter's birthday is reported in the books as being "somewhere in July". Author J.K. Rowling, and actors Daniel Radcliffe (Harry Potter) and Richard Griffiths (Uncle Vernon) were all reported to have their birthdays on 31 July. It was later revealed that Radcliffe's birthday is, in fact, 23rd July and that the claim that his birthday was the same as Harry Potter's was merely a publicity stunt.
  
   
• On the Quidditch trophy that has Harry's father's name on it, there are additional inscriptions for M. McGonagall and R.J.H. King.
  
   
• The name of Filch's cat ("Mrs. Norris") is not mentioned anywhere in the movie, nor is the name of Harry's owl ("Hedwig").
  
   
• The inscription around the Mirror of Erised says: Erised stra ehru oyt ube cafru oyt on wohsi. Reading the inscription backwards it says, "I show not your face but your heart's desire."
  
   
• The word 'bloody' appears in the film six times, along with one 'arse', one 'bugger', and two 'blasted's. This, and some very scary scenes in the haunted forest, led to its PG certificate.
  
   
• The film reveals that the 12th use for dragon's blood is an oven cleaner.
  
   
• Nicholas Flamel, mentioned as the creator of the Philosopher's/Sorcerer's Stone, was actually a real alchemist who was believed by some people to have produced the Philosopher's Stone and who has mysterious circumstances surrounding his "death". It is rumoured that he might still be alive and, if so, he would be about the age given in the book and movie.
  
   
• The Hogwarts motto, "Draco dormiens nunquam titillandus" means "never tickle a sleeping dragon".
  
   
• Three owls play Hedwig, Ook, Gizmo and Sprout, but mainly Ook.
  
   
• In the final credits, Will Theakston is mistakenly credited as playing Marcus Flint and Scott Fern is also erroneously credited with playing Terence Higgs. Warner Brothers, apparently, mixed up their names and characters when they released a memo to the press (they subsequently corrected their mistake with the press), however, they failed to correct the credits thus the mistake remains (for the record, Will Theakston played Terence Higgs and Scott Fern played Marcus Flint).
  
   
• Warwick Davis, who played Professor Flitwick and the first Gringotts Goblin, also provided the voice for Griphook who was physically played by Verne Troyer.
  
   
• In the original draft, Drew Barrymore, a self-exclaimed Harry Potter fan, had a cameo.
  
   
• John Williams composed a piece of music specifically for the movie's trailer, and it is found on the soundtrack as "The Prologue". As of March 2002, he has done this only once before, for Steven Spielberg's Hook.
  
   
• Rosie O'Donnell and Robin Williams were two of the celebrities who had asked for a role in the movie without pay. However they did not film any scenes for the movie.
  
   
• Tim Roth was a leading contender for the role of Professor Severus Snape. Roth dropped out of contention, however, to pursue his role as General Thade in Tim Burton's adaptation of Planet of the Apes.
  
   
• In the script, the flashbacks to Voldemort killing Harry's parents were written by J.K. Rowling herself. The producers knew she was the only one who knew exactly what happened.
  
   
• The "Hogwart's Express" locomotive portrayed in this film, a 1937 4-6-0 "Hall" class steam engine number 5972, originally belonged to the Great Western Railway and went under the name of "Olton Hall".
  
   
• Alan Rickman was hand-picked to play Snape by J.K. Rowling.
  
   
• In the troll scene in the girl's bathroom, Daniel Radcliffe isn't actually on the troll's neck, because the motions would have snapped his neck; therefore, his image was digitally added
  
   
• In the trophy cupboard, to the right of the Quidditch trophy, you can see the "Service to the School" trophy with part of "Tom M Riddle" engraved on it.
  
   
• The Wizard's chess-set Harry and Ron were playing, the red queen is from the Lewis Chessmen, the most important of all chess pieces dating from the 12th Century. They were found in 1831 on a beach in Uig, Lewis. 78 pieces were recovered in all, and are now in the care of the National Museum of Scotland and in the British Museum in London.
  
   
• For the Gringotts interior scenes, the Australian Embassy in London was used. The exteriors are the Silver Vaults located not far from the Australian Embassy
  

Information courtesy of IMDb.