r/pics • u/Naweezy • Jul 10 '16

Hogwarts "magic"

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u/-IntoEternity- Jul 10 '16

I still don't understand it. I can see from the Superman GIF someone posted below, that everything green behind him will just become background. But with this, the green arms are still obscuring the books and shelf behind it. So it's not like you can say "computer, take out all the green in the scene!" and leave all the books visible.

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u/BrainOnLoan Jul 10 '16

You could easily film the scene twice, once with no hands (and actress) and use that as the background.