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University of Cambridge Home Intellectual Property and Copyright in the Digital Environment
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University of Cambridge > CARET > Intellectual Property and Copyright in the Digital Environment

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Can copyright be shared between authors?
Maybe. Where two or more people have created a work protected by copyright and their contributions cannot be distinguished, those people are joint authors and the copyright is shared. Examples include where one person has drafted an article and another person has amended and added to it; a broadcast made by more than one person; and the works of Gilbert and Sullivan.  The law says that two people, the producer and principal director, are joint authors of a film. 
However, where the finished work includes distinct and separate works by different authors, each contributing author would own only the copyright in their own work included in the ‘collection’.  This could apply, for example, to an anthology of poetry with each poem written by a different person.
In the case of works made by employees during the course of their employment, different rules apply. If all the joint authors were employees of the same employer, then the employer would automatically own the copyright (unless the contracts of employment stated otherwise). But if one of the joint authors was not an employee of that same employer, then copyright in that joint work would be jointly owned by all the joint authors.
Those are the basic rules about first copyright ownership of works of joint authorship. However, the law allows the joint authors to have a contractual agreement between them stating who will own the copyright. These agreements override the above rules.  Similarly, the law allows employees who are joint authors to have an agreement with their (same) employer stating who will own the copyright.
Information current as at 12 September 2005.
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