When Mary and Stan are lying on Joel's bed and smoking pot, Stan is talking about The Clash and Mary is talking about how great their boss is. They are sharing a single joint. (The point is shown being passed back and forth.) However, Mary passes it to Stan. Then the camera focuses on Mary, who is now holding a joint. See more...
The scene where Joel stumbles upon the memory of his visit with the doctor, even though there are two Joels, there are no special effects being applied. As the shot turned back and forth, Jim Carrey actually dashed behind the camera, switching from a standing up wearing a jacket and stocking cap, to sitting down wearing no jacket no hat. It's actually quite impressive. See more...
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The entry you are changing the wording of is:
|Title||Eternal Sunshine of the Spotless Mind|
|Original entry||In the whole first sequence of Joel meeting Clementine (i.e. on the train etc) her hair is a faded blue, with obvious roots. However as soon as they get to her house it has changed to a much darker, obviously newly dyed, dark blue. [It has to do with lighting. In daylight her hair looks faded blue but in a darker lighting it appears to be dark blue.]|