The periphery of film and television works belongs to film and television derivatives. Derivation refers to a new substance (such as substitution or hydrolysis) produced by evolution and obtained from the parent substance. Such as derivatives, derivatives, etc. Derivative is originally a financial vocabulary, which usually refers to financial instruments derived from tier-one assets. [1] Film and television derivatives refer to all kinds of products related to film and television and derived from film and television works. The concept of film and television derivatives originated in the United States, which generally refers to products that benefit from the development and commercial operation of characters, scenes, props and logos in film and television dramas, including toys, clothing, accessories, audio and video, books, daily necessities, souvenirs, theme parks and so on.

The peripheral products of film and television have the characteristics of derivative, commercialization and timeliness. There is a derivative interaction between film and television derivatives and film and television works. Therefore, the development, production and sale of film and television derivatives may belong to the scope of protection of rights related to film and television works. If you want to produce and sell film and television derivatives, you should obtain the authorization of the relevant rights holders of film and television works. Unauthorized use may constitute infringement.