Use the video as a "teaser." State that while the file name is generic, the technique inside is anything but.
Something Big is Coming: Don’t Blink or You’ll Miss It IMG_5875MOV
The Story Behind the Shot: What Really Happened in IMG_5875 Use the video as a "teaser
Provide a "Pro Tip" that isn't immediately obvious just by watching the clip. Option 3: The Promotional/Giveaway Post IMG_5875MOV