Quotes
Leonard: We need to widen our circle.
Sheldon: I have a very wide circle. I have 212 friends on MySpace.
Leonard: Yes, and you've never met one of them.
Sheldon: That's the beauty of it.
Trivia
Penny is the only character whose surname has not yet been revealed. See more...
Movie Mistakes blog
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Top 15 biggest Harry Potter film mistakes
The 10 biggest mistakes in Iron Man 1 & 2
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Other great sites
The Big Bang Theory (2007) - 6 mistakes in whole show
starring Jim Parsons, Johnny Galecki, Kaley Cuoco, Kunal Nayyar, Simon Helberg (add more)
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Updates:
Series 2
Deliberate "mistake": Very often, during Skype or other video chat conversations, the people on the computer screen look left or right when talking to someone who is not directly in front of the screen. Although it certainly helps the viewers understand who's talking to whom (which is why I assume it's a 'deliberate mistake'), it isn't realistic, since it implies that the people on the screen are actually constantly looking away from their computer instead of at their screen or webcam.
Continuity: In the apartment block's stairwell, the wall mounted light is situated in a different place in the two camera angles used. In the first angle showing them walking down from behind, the light is positioned above the level section of hand rail, when the camera switches to the front view, the light is over the angled section of hand rail.







