I want to make a graduation video, like a movie. What kind of knowledge and equipment do I need?

Take a DV and plan to shoot what material, such as the last class, graduation ceremony, graduation party, saying goodbye together and so on. Shoot a lot first, then put it on the computer, install a video production software such as audio and video, cut out what you need from that pile of material, and splice it into a big video. This is your graduation movie, and finally add some background music, subtitles and opening and closing subtitles. All these can be done by sound and shadow. Pay attention to those boring scenes when cutting the material, so as not to interest people. Don't shoot for too long. Pay attention to changing the shooting angle and distance. Don't just shoot the front, and don't just shoot everyone's face. That's about it. Do not delete the remaining materials. They are all good memories.