The screenwriter's submission usually involved many different media platforms, including film production companies, television producers, online media platforms, publishing houses, and the screenwriter market. The following are some common channels for screenwriters to submit their works: 1. Film production company: Film production companies usually accept screenwriter's submission and organize some special screenwriter workshops and competitions. The screenwriters could participate in these companies 'activities and workshops to understand the process and requirements of film production and have the opportunity to communicate and cooperate with the film producers and directors. 2. TV producers: TV producers will also accept screenwriter's submission and organize some special screenwriter workshops and competitions. The scriptwriters could participate in these companies 'activities and workshops to understand the process and requirements of TV production and have the opportunity to communicate and cooperate with producers and directors. 3. Online media platforms: Online media platforms usually accept screenwriter's contributions and organize some specialized screenwriter workshops and competitions. Through participating in these companies 'activities and workshops, screenwriters could learn about the creative requirements and processes of online media platforms and have the opportunity to communicate and cooperate with editors, directors, and producers. 4. The publishing house: The publishing house usually accepts screenwriters 'contributions and will organize some specialized editing workshops and competitions. Through participating in these companies 'activities and workshops, screenwriters could understand the process and requirements of editing and publishing, and have the opportunity to communicate and cooperate with editors and authors. 5. The scriptwriter market: The scriptwriter market was a platform for scriptwriters to submit and communicate. The screenwriters could participate in the activities and workshops of these platforms to understand the creative requirements and processes of the screenwriter market and have the opportunity to communicate and cooperate with producers, directors, and other screenwriters. There were many ways for screenwriters to submit their works. The choice of channel depended on the screenwriter's personal situation and goals.