The copyright of a movie script usually belonged to the screenwriter or the screenwriter team, not the film company or the director. The copyright of the screenplay could protect the rights and interests of the screenwriters, including the right to sign, modify, translate, and transmit information online. If the scriptwriter or the scriptwriter team sold or authorized their script to the film company to make the movie, the film company had the right to use the script in the production process and pay the scriptwriter or the scriptwriter team the corresponding remuneration. In addition, if the script was publicly posted on the Internet, it might also lead to copyright violation. Therefore, the screenwriter or screenwriter team should take appropriate measures to protect the copyright of their script, such as marking the copyright information on the script, signing a copyright transfer agreement with the film company, etc.