Since "IMG_9576.MOV" is a generic filename automatically assigned by cameras (like iPhones), the content of your video could be anything from a personal memory to a specific event.
Don't be afraid of long captions if the content is interesting or valuable; just be sure to proofread to maintain a professional feel. IMG_9576.MOV
Could you tell me a bit more about so I can give you a specific caption or strategy? Since "IMG_9576