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As a society, we want to encourage people[br]to be creative and inventive

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and to be able to make a living off it.

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This means that there must be some level[br]of protection

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available for those creations, such as[br]works of arts or inventions.

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Otherwise, every photographer would be[br]easily plagiarized

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and would never see any reward for their job.

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For an invention, this protection is not[br]automatic.

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One needs to obtain a patent.

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For the work of art,

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this intellectual property translates[br]automatically into copyright.

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Copyright is the right to reuse and[br]distribute the work or its image

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and is usually granted for a[br]limited time.

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The Mona Lisa, for instance, is too old,[br]so there is no copyright on it.

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Say Bob has the copyright of some work[br]and Alice wants to use it.

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Then Alice will have to ask for permission[br]and Bob has two options.

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Of course he can refuse or he can accept[br]and possibly charge Alice for it.

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In the US there are exceptions to this,[br]generally called fair use.

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This can apply in different context.

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For instance the news, parody, or[br]non-profit education.

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This becomes very tricky in the context of[br]movies, as some of the companies

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distributing them, such as Coursera,

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are for profit, in ways [br]that are not exactly clear.

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For instance, I do not intend [br]to make money off this course

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but Coursera somehow does.

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So I have to be very careful with what I use.

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The scale in a movie is so large that using[br]images can interfere

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with the original use of the image, [br]and this means exceptions

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that applied to classroom's use do not apply[br]anymore.

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It can also be very tricky to determine[br]what kind of use

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one can do of the materials.

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If this figurine had been a figurine of[br]Disney's Alice in Wonderland,

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for instance, Disney could have tried to argue[br]that I have violated copyright law.

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It's not even entirely clear that [br]by using these bricks

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I'm not in violation of that law.

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In general, this is a completely new[br]landscape and it's still to be defined.

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Fortunately others have figured out ways[br]to simplify the system,

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for instance with Creative Commons.

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If you create content and want to[br]encourage others to reuse it,

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it would be very wise for you to look [br]a little bit at Creative Commons

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and try to pick a licensing scheme that you like.

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[CC BY-SA[br]Paul-Olivier Dehaye]