Silent Movie

This is an instigating activity. You simply have to choose a video that has some clues for students (body language, articulated characters, scenario, face expressions, etc). You can play it a first time without the audio and ask students to guess the content of the video, the topic of the conversation, the narrative of the story, basically any information from the chosen video. To make it easier, you can give students options of topics and they have to check the ones that appear on the video.
The opposite activity can also be done: play only the audio and ask students to identify the scenario, the characters, again, anything that seems relevant in the video.