Airtame is a device that is capable of streaming video files from your computer to external screen. You can see more information here: https://help.airtame.com/install-and-setup/deployment-guide/audio-video-streaming
However, various factors need to be considered. If streaming movies is the main use-case, perhaps, Airtame is not the right device. It is designed for business/education oriented environments where main focus is presentations, occasional videos and similar use-cases related to meetings and classes. In case watching movies is the main use-case, there are other devices can do this more conveniently.
If you have any other questions, please leave your email and we will reach out to you.