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In the [[United States]], "derivative work" is defined in A “derivative work” is a work based upon one or more preexisting works, such as a translation, musical arrangement, dramatization, fictionalization, motion picture version, sound recording, art reproduction, abridgment, condensation, or any other form in which a work may be recast, transformed, or adapted. A work consisting of editorial revisions, annotations, elaborations, or other modifications which, as a whole, represent an original work of authorship, is a “derivative work”.

In the [[United States]], "derivative work" is defined in A “derivative work” is a work based upon one or more preexisting works, such as a translation, musical arrangement, dramatization, fictionalization, motion picture version, sound recording, art reproduction, abridgment, condensation, or any other form in which a work may be recast, transformed, or adapted. A work consisting of editorial revisions, annotations, elaborations, or other modifications which, as a whole, represent an original work of authorship, is a “derivative work”.

[http://www.copyright.gov/circs/circ14.html#derivative/ US Copyright Office Circular 14:  Derivative Works] notes that: A typical example of a derivative work received for registration in the Copyright Office is one that is primarily a new work but incorporates some previously published material. This previously published material makes the work a derivative work under the copyright law.

[https://www.copyright.gov/circs/circ14.html#derivative/ US Copyright Office Circular 14:  Derivative Works] notes that: A typical example of a derivative work received for registration in the Copyright Office is one that is primarily a new work but incorporates some previously published material. This previously published material makes the work a derivative work under the copyright law.

To be copyrightable, a derivative work must be different enough from the original to be regarded as a "new work" or must contain a substantial amount of new material. Making minor changes or additions of little substance to a preexisting work will not qualify the work as a new version for copyright purposes. The new material must be original and copyrightable in itself. Titles, short phrases, and format, for example, are not copyrightable.

To be copyrightable, a derivative work must be different enough from the original to be regarded as a "new work" or must contain a substantial amount of new material. Making minor changes or additions of little substance to a preexisting work will not qualify the work as a new version for copyright purposes. The new material must be original and copyrightable in itself. Titles, short phrases, and format, for example, are not copyrightable.

WHO MAY PREPARE A DERIVATIVE WORK? Only the owner of copyright in a work has the right to prepare, or to authorize someone else to create, a new version of that work. The owner is generally the author or someone who has obtained rights from the author.

WHO MAY PREPARE A DERIVATIVE WORK? Only the owner of copyright in a work has the right to prepare, or to authorize someone else to create, a new version of that work. The owner is generally the author or someone who has obtained rights from the author.

From another informative Artslaw Org website: The copyright provides the owner with a number of exclusive rights, including the right to make new versions of the original work, called derivative works. This concept also protects an artist from having his/her original work reproduced in a different media by another artist, without the consent of the first artist[http://www.artslaw.org/DERIV.HTM].  

From another informative Artslaw Org website: The copyright provides the owner with a number of exclusive rights, including the right to make new versions of the original work, called derivative works. This concept also protects an artist from having his/her original work reproduced in a different media by another artist, without the consent of the first artist[https://www.artslaw.org/DERIV.HTM].  

[[Stanford Law School]] Center Chilling Effects discusses 'Derivative Works'.

[[Stanford Law School]] Center Chilling Effects discusses 'Derivative Works'.

If you are an author or an artist and you want to use all or part of someone else's creation in your work, you may run into problems with claims that your art is a derivative work[http://www.chillingeffects.org/derivative].  

If you are an author or an artist and you want to use all or part of someone else's creation in your work, you may run into problems with claims that your art is a derivative work[https://www.chillingeffects.org/derivative].  

On its FAQ page:  

On its FAQ page:  

Question: Can I take a character from a movie, like Chewbacca from Star Wars, and use it in a play with a very different plot and otherwise different characters?

Question: Can I take a character from a movie, like Chewbacca from Star Wars, and use it in a play with a very different plot and otherwise different characters?

Answer: Probably not. The people who hold copyright in Star Wars own the characters as well as the plot, the filmed images, etc. Placing a distinctive fictional character in a different context or medium is still copying that character, and therefore infringement[http://www.chillingeffects.org/derivative/faq.cgi].

Answer: Probably not. The people who hold copyright in Star Wars own the characters as well as the plot, the filmed images, etc. Placing a distinctive fictional character in a different context or medium is still copying that character, and therefore infringement[https://www.chillingeffects.org/derivative/faq.cgi].

From Hudis Sullivan Copyright Article on 'derivative work': Although a derivative work author usually has been authorized, through license, to incorporate the previous work into his derivation, he does not gain thereby a copyright in any preexisting material.

From Hudis Sullivan Copyright Article on 'derivative work': Although a derivative work author usually has been authorized, through license, to incorporate the previous work into his derivation, he does not gain thereby a copyright in any preexisting material.

Other courts, including the Eleventh Circuit Court of Appeals, take the view that an owner of a [[copyright registration]] for an original work should be permitted to sue for infringement of his derivative work without a separate registration. These courts proceed on the theory that (1) the original work author has the exclusive right to sue for infringement of his work; (2) a derivative work, by definition, includes the work that would be infringing without the consent of the original rights holder; and therefore (3) the original author's ability to sue on the original work carries over to any derivative work[http://www.oblon.com/Pub/HudisSullivanCopyrightArticle.html].

Other courts, including the Eleventh Circuit Court of Appeals, take the view that an owner of a [[copyright registration]] for an original work should be permitted to sue for infringement of his derivative work without a separate registration. These courts proceed on the theory that (1) the original work author has the exclusive right to sue for infringement of his work; (2) a derivative work, by definition, includes the work that would be infringing without the consent of the original rights holder; and therefore (3) the original author's ability to sue on the original work carries over to any derivative work[https://www.oblon.com/Pub/HudisSullivanCopyrightArticle.html].

==Examples==

==Examples==

Since many films are based on novels or scripts they are classed as derivative works.  In cases where the film's copyright has lapsed but the original work is still covered, the film cannot be freely distributed without the permission of the original author on whose work the film was based.<ref>Avner, Jon.  "[http://www.film-center.com/canishow.html Can I Show "It's A Wonderful Life" ?]".  Accessed [[26 August]] [[2006]].For example, the 1912 [[George Bernard Shaw]] [[play]] ''[[Pygmalion (play)|Pygmalion]]'' was made into a film [[Pygmalion (1938 film)|of the same name]] in 1938.  The film's protection had lapsed and it was thus released into [[public domain]], but that of the original play was retained.  After a third party released prints of the film they were challenged by the copyright-holders of the play, with a court ruling that releasing the prints was a copyright infringement.<ref name="publaw">Lloyd L. Rich.  The Publishing Law Center.  1998.  "[http://www.publaw.com/publicdomain.html The Public Domain and the Impact of New Legislation]".  Accessed [[26 August]] [[2006]].</ref>

Since many films are based on novels or scripts they are classed as derivative works.  In cases where the film's copyright has lapsed but the original work is still covered, the film cannot be freely distributed without the permission of the original author on whose work the film was based.<ref>Avner, Jon.  "[https://www.film-center.com/canishow.html Can I Show "It's A Wonderful Life" ?]".  Accessed [[26 August]] [[2006]].For example, the 1912 [[George Bernard Shaw]] [[play]] ''[[Pygmalion (play)|Pygmalion]]'' was made into a film [[Pygmalion (1938 film)|of the same name]] in 1938.  The film's protection had lapsed and it was thus released into [[public domain]], but that of the original play was retained.  After a third party released prints of the film they were challenged by the copyright-holders of the play, with a court ruling that releasing the prints was a copyright infringement.<ref name="publaw">Lloyd L. Rich.  The Publishing Law Center.  1998.  "[https://www.publaw.com/publicdomain.html The Public Domain and the Impact of New Legislation]".  Accessed [[26 August]] [[2006]].</ref>

==Derivative work of software==

==Derivative work of software==

The definition of derivative works of software is not entirely clear[http://community.linux.com/article.pl?sid=02/11/13/117247&tid=87&tid=41&tid=12&tid=42]

The definition of derivative works of software is not entirely clear[https://community.linux.com/article.pl?sid=02/11/13/117247&tid=87&tid=41&tid=12&tid=42]

This is a particular problem for software that utilizes licenses such as the [[GNU General Public License|GPL]] because these licenses put special restrictions on such derivations (for instance the so-called [[viral clause]] of strong [[copyleft]] licenses asks for the new work to not further restrict the freedoms granted sofar).

This is a particular problem for software that utilizes licenses such as the [[GNU General Public License|GPL]] because these licenses put special restrictions on such derivations (for instance the so-called [[viral clause]] of strong [[copyleft]] licenses asks for the new work to not further restrict the freedoms granted sofar).

* In the same sense linking to a library in the way it was designed to be interfaced with, does not constitute deriving a work. ''But See'' [[LGPL]].

* In the same sense linking to a library in the way it was designed to be interfaced with, does not constitute deriving a work. ''But See'' [[LGPL]].

A more detailed account on the issue can be found at [http://www.rosenlaw.com/lj19.htm Derivative Works] by Lawrence Rosen.

A more detailed account on the issue can be found at [https://www.rosenlaw.com/lj19.htm Derivative Works] by Lawrence Rosen.

==See also==

==See also==

==External links==

==External links==

*[http://www.copyright.gov/title17/ US Copyright Act (Hosted by the Copyright Office)]

*[https://www.copyright.gov/title17/ US Copyright Act (Hosted by the Copyright Office)]

*[http://www.copyright.gov/circs/circ14.html#derivative/ US Copyright 'Derivative Works' (Hosted by the Copyright Office)]

*[https://www.copyright.gov/circs/circ14.html#derivative/ US Copyright 'Derivative Works' (Hosted by the Copyright Office)]

*[http://chillingeffects.org/derivative/faq.cgi Frequently Asked Questions (and Answers) about Derivative Works]

*[https://chillingeffects.org/derivative/faq.cgi Frequently Asked Questions (and Answers) about Derivative Works]

*Article "[http://linuxjournal.com/article.php?sid=6366 Geek Law: Derivative Works]" by [[Lawrence Rosen]]

*Article "[https://linuxjournal.com/article.php?sid=6366 Geek Law: Derivative Works]" by [[Lawrence Rosen]]

*Article "[http://www.artslaw.org/DERIV.HTM DERIVATIVE WORK RIGHTS]" by [[David M. Spatt]]

*Article "[https://www.artslaw.org/DERIV.HTM DERIVATIVE WORK RIGHTS]" by [[David M. Spatt]]

*Article "[http://docs.law.gwu.edu/facweb/claw/Lhooq0.htm L.H.O.O.Q.--Internet-Related Derivative Works]" by [[Richard H. Stern]]

*Article "[https://docs.law.gwu.edu/facweb/claw/Lhooq0.htm L.H.O.O.Q.--Internet-Related Derivative Works]" by [[Richard H. Stern]]

*Article "[http://funnystrange.com/copyright/derivative.htm Derivative Works]" by [[Sarah Ovenall]]

*Article "[https://funnystrange.com/copyright/derivative.htm Derivative Works]" by [[Sarah Ovenall]]

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