Sites like CSDN host it as a resource for visual effects (VFX) tutorials.

If you are downloading this file to use in editing software (like OpenShot, Premiere Pro, or Vegas Pro) and the video appears with a distorted or only plays audio, it is often a codec or hardware acceleration issue rather than a problem with the file itself. In such cases, updating your HEVC extensions or disabling hardware decoding in your player settings usually fixes the display.

It is frequently shared in editor communities on Telegram and file-sharing sites like 4shared . Usage Notes

Because this is a common stock asset, it is hosted across various media-sharing platforms:

Short versions of the clip can be found on YouTube and Vimeo for previewing.